Python on Reese Gerjekian

Python on Reese Gerjekianhttps://rgerjeki.github.io/tags/python/Recent content in Python on Reese GerjekianHugoenWed, 08 Jul 2026 00:00:00 -0700Triaging a Suspicious Indicator in One Commandhttps://rgerjeki.github.io/blog/triaging-an-indicator-in-one-command/Wed, 08 Jul 2026 00:00:00 -0700https://rgerjeki.github.io/blog/triaging-an-indicator-in-one-command/<p>A lot of security work starts the same way. Something hands you an indicator: an IP out of a firewall log, a file hash off an alert, a domain from an email that did not feel right. Before you can do anything with it you have to answer two questions. Is it bad, and what is it connected to?</p> <p>The usual way to answer that is by hand, one tab at a time: <a href="https://www.virustotal.com/" class="external-link" target="_blank" rel="noopener">VirusTotal</a>, then <a href="https://www.abuseipdb.com/" class="external-link" target="_blank" rel="noopener">AbuseIPDB</a>, then a WHOIS lookup, then <a href="https://crt.sh/" class="external-link" target="_blank" rel="noopener">crt.sh</a>, then a couple of blocklists, holding half-loaded browser tabs in your head while you try to form an opinion. It works, but it is slow and easy to do inconsistently, and it falls apart around the third indicator of a busy day.</p> <p>So I built a command-line tool that does that first pass in one shot. It is called <code>indict</code>. You give it one indicator, it figures out the type, asks every source that fits at the same time, and hands back a single report with a verdict and the reasons under it.</p>Collatz Conjecture in Pythonhttps://rgerjeki.github.io/python-projects/math/collatz-conjecture-in-python/Fri, 01 Jan 2021 00:00:00 +0000https://rgerjeki.github.io/python-projects/math/collatz-conjecture-in-python/<p>The Collatz Conjecture, also known as the 3(x) + 1 conjecture, is a famous unsolved problem in mathematics. It proposes a sequence defined by the following rules: Start with any positive integer x. If x is even, divide it by 2; if n is odd, multiply it by 3 and add 1. The conjecture posits that no matter the starting number, the sequence will eventually reach the value 1.</p> <section class="op-runner-block"> <iframe class="op-runner" src="https://trinket.io/embed/python3/ce8f8a7c83?outputOnly=true" width="100%" height="356" frameborder="0" marginwidth="0" marginheight="0" allowfullscreen loading="lazy" title="Interactive Python runner"></iframe> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-python" data-lang="python"><span class="line"><span class="cl"><span class="c1"># importing the required module</span> </span></span><span class="line"><span class="cl"><span class="kn">import</span> <span class="nn">matplotlib.pyplot</span> <span class="k">as</span> <span class="nn">plt</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="c1"># declare x-axis</span> </span></span><span class="line"><span class="cl"><span class="n">iteration_num_list</span> <span class="o">=</span> <span class="p">[]</span> </span></span><span class="line"><span class="cl"><span class="n">x</span> <span class="o">=</span> <span class="mi">0</span> </span></span><span class="line"><span class="cl"><span class="n">iteration_num_list</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">x</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="c1"># check for positive number</span> </span></span><span class="line"><span class="cl"><span class="n">positive</span> <span class="o">=</span> <span class="kc">False</span> </span></span><span class="line"><span class="cl"><span class="k">while</span> <span class="n">positive</span> <span class="o">==</span> <span class="kc">False</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="nb">print</span><span class="p">(</span><span class="s2">"Enter any number: "</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="n">num</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="nb">input</span><span class="p">())</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="n">num</span> <span class="o"><=</span> <span class="mi">0</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="nb">print</span><span class="p">(</span><span class="s2">"INVALID, ENTER POSITIVE NUMBER: "</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="k">continue</span> </span></span><span class="line"><span class="cl"> <span class="k">else</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="k">break</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="c1"># declare y-axis</span> </span></span><span class="line"><span class="cl"><span class="n">num_list</span> <span class="o">=</span> <span class="p">[]</span> </span></span><span class="line"><span class="cl"><span class="n">num_list</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">num</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="n">num</span> <span class="o">=</span> <span class="mi">3</span> <span class="o">*</span> <span class="n">num</span> <span class="o">+</span> <span class="mi">1</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="k">while</span> <span class="n">num</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="c1"># if num is even, then divide by 2</span> </span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="n">num</span> <span class="o">%</span> <span class="mi">2</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="nb">print</span><span class="p">(</span><span class="n">num</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="n">num</span> <span class="o">=</span> <span class="n">num</span> <span class="o">/</span> <span class="mi">2</span> </span></span><span class="line"><span class="cl"> <span class="n">x</span> <span class="o">=</span> <span class="n">x</span> <span class="o">+</span> <span class="mi">1</span> </span></span><span class="line"><span class="cl"> <span class="n">iteration_num_list</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">x</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="n">num_list</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">num</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="k">continue</span> </span></span><span class="line"><span class="cl"> <span class="c1"># if num is odd, repeat 3(num)+1</span> </span></span><span class="line"><span class="cl"> <span class="k">else</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="nb">print</span><span class="p">(</span><span class="n">num</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="n">num</span> <span class="o">=</span> <span class="mi">3</span> <span class="o">*</span> <span class="n">num</span> <span class="o">+</span> <span class="mi">1</span> </span></span><span class="line"><span class="cl"> <span class="n">x</span> <span class="o">=</span> <span class="n">x</span> <span class="o">+</span> <span class="mi">1</span> </span></span><span class="line"><span class="cl"> <span class="n">iteration_num_list</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">x</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="n">num_list</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">num</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="k">continue</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="nb">print</span><span class="p">(</span><span class="n">num</span><span class="p">)</span> </span></span><span class="line"><span class="cl"><span class="nb">print</span><span class="p">(</span><span class="s2">"Done!"</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="c1"># plotting the points</span> </span></span><span class="line"><span class="cl"><span class="n">plt</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">iteration_num_list</span><span class="p">,</span> <span class="n">num_list</span><span class="p">)</span> </span></span><span class="line"><span class="cl"><span class="n">plt</span><span class="o">.</span><span class="n">xlabel</span><span class="p">(</span><span class="s1">'iteration'</span><span class="p">)</span> </span></span><span class="line"><span class="cl"><span class="n">plt</span><span class="o">.</span><span class="n">ylabel</span><span class="p">(</span><span class="s1">'x in 3(x) + 1'</span><span class="p">)</span> </span></span><span class="line"><span class="cl"><span class="n">plt</span><span class="o">.</span><span class="n">title</span><span class="p">(</span><span class="s1">'3(x) + 1'</span><span class="p">)</span> </span></span><span class="line"><span class="cl"><span class="n">plt</span><span class="o">.</span><span class="n">show</span><span class="p">()</span> </span></span></code></pre></div> </section>Fibonacci Sequence in Pythonhttps://rgerjeki.github.io/python-projects/math/fibonacci-sequence-in-python/Fri, 01 Jan 2021 00:00:00 +0000https://rgerjeki.github.io/python-projects/math/fibonacci-sequence-in-python/<p>The Fibonacci sequence is a fundamental mathematical sequence where each number is the sum of the two preceding ones, starting from 0 and 1. So, the sequence begins 0, 1, 1, 2, 3, 5, 8, 13, 21, and so on. It has numerous applications in various fields, including mathematics, biology, art, and computer science and appears in natural phenomena, such as the arrangement of leaves on a stem or the spirals in a seashell.</p>Goldbach Conjecture in Pythonhttps://rgerjeki.github.io/python-projects/math/goldbach-conjecture-in-python/Fri, 01 Jan 2021 00:00:00 +0000https://rgerjeki.github.io/python-projects/math/goldbach-conjecture-in-python/<p>The Goldbach Conjecture is a famous unsolved problem in number theory that dates back to 1742. It was first proposed by the German mathematician Christian Goldbach, who wrote a letter to the famous mathematician Leonhard Euler in which he stated that “every positive even integer greater than 2 can be expressed as the sum of two prime numbers.”.</p> <section class="op-runner-block"> <iframe class="op-runner" src="https://trinket.io/embed/python3/a85b4399a9?outputOnly=true" width="100%" height="356" frameborder="0" marginwidth="0" marginheight="0" allowfullscreen loading="lazy" title="Interactive Python runner"></iframe> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-python" data-lang="python"><span class="line"><span class="cl"><span class="c1"># Program to check if a number is prime or not</span> </span></span><span class="line"><span class="cl"><span class="n">num</span> <span class="o">=</span> <span class="mi">3</span> </span></span><span class="line"><span class="cl"><span class="n">prime</span> <span class="o">=</span> <span class="p">[]</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="c1"># To take input from the user</span> </span></span><span class="line"><span class="cl"><span class="c1"># num = int(input("Enter a number: "))</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="k">while</span> <span class="n">num</span> <span class="o">!=</span> <span class="mi">100</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="n">num</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="c1"># check for factors</span> </span></span><span class="line"><span class="cl"> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="n">num</span><span class="p">):</span> </span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="p">(</span><span class="n">num</span> <span class="o">%</span> <span class="n">i</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="n">num</span> <span class="o">=</span> <span class="n">num</span> <span class="o">+</span> <span class="mi">1</span> </span></span><span class="line"><span class="cl"> <span class="k">break</span> </span></span><span class="line"><span class="cl"> <span class="k">else</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="nb">print</span><span class="p">(</span><span class="n">num</span><span class="p">,</span> <span class="s2">" is prime!"</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="n">prime</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">num</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="n">num</span> <span class="o">=</span> <span class="n">num</span> <span class="o">+</span> <span class="mi">1</span> </span></span><span class="line"><span class="cl"> <span class="k">else</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="n">num</span> <span class="o">=</span> <span class="n">num</span> <span class="o">+</span> <span class="mi">1</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="n">end</span> <span class="o">=</span> <span class="kc">False</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="k">while</span> <span class="n">end</span> <span class="o">==</span> <span class="kc">False</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="c1"># get first number in list</span> </span></span><span class="line"><span class="cl"> <span class="n">first</span> <span class="o">=</span> <span class="n">prime</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"> <span class="c1"># print list of prime numbers</span> </span></span><span class="line"><span class="cl"> <span class="nb">print</span><span class="p">(</span><span class="n">prime</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"> <span class="c1"># Iterate through the list of prime numbers</span> </span></span><span class="line"><span class="cl"> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">prime</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="c1"># sum of x and the first number in the list</span> </span></span><span class="line"><span class="cl"> <span class="nb">sum</span> <span class="o">=</span> <span class="n">x</span> <span class="o">+</span> <span class="n">first</span> </span></span><span class="line"><span class="cl"> <span class="nb">print</span><span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">x</span><span class="p">),</span> <span class="s1">' + '</span><span class="p">,</span> <span class="nb">str</span><span class="p">(</span><span class="n">first</span><span class="p">),</span> <span class="s1">' = '</span><span class="p">,</span> <span class="n">x</span> <span class="o">+</span> <span class="n">first</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"> <span class="c1"># if the sum is even, continue with the program</span> </span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="nb">sum</span> <span class="o">%</span> <span class="mi">2</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="k">continue</span> </span></span><span class="line"><span class="cl"> <span class="k">else</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="nb">print</span><span class="p">(</span><span class="s2">"STOP"</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="n">end</span> <span class="o">=</span> <span class="kc">True</span> </span></span><span class="line"><span class="cl"> <span class="k">break</span> </span></span><span class="line"><span class="cl"> <span class="c1"># get rid of first number in list</span> </span></span><span class="line"><span class="cl"> <span class="n">prime</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"> <span class="c1"># if the list of prime numbers is empty, exit while loop</span> </span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="ow">not</span> <span class="n">prime</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="n">end</span> <span class="o">=</span> <span class="kc">True</span> </span></span></code></pre></div> </section>Password Checker in Pythonhttps://rgerjeki.github.io/python-projects/security/password-checker-in-python/Fri, 01 Jan 2021 00:00:00 +0000https://rgerjeki.github.io/python-projects/security/password-checker-in-python/<p>The program defines a function, password_strength, that evaluates the strength of a provided password based on several criteria: length, presence of lowercase letters, uppercase letters, numbers, and special characters. It returns a string describing the password’s strength as either “Weak”, “Medium”, or “Strong”. When run as a standalone script, the program prompts the user to input a password and then displays the strength assessment of the entered password.</p> <div class="op-demo"> <h2>Password strength checker</h2> <input type="password" id="passwordInput" oninput="checkPasswordStrength()" name="password" placeholder="Enter your password" autocomplete="off" required> <p id="strengthDisplay" class="op-demo-result"></p>Random Password Generator in Pythonhttps://rgerjeki.github.io/python-projects/security/random-password-generator-in-python/Fri, 01 Jan 2021 00:00:00 +0000https://rgerjeki.github.io/python-projects/security/random-password-generator-in-python/<p>This program is a Random Password Generator designed to enhance online security. By specifying the desired password length, users can create strong passwords that combine lowercase and uppercase letters, numbers, and special symbols.</p> <section class="op-runner-block"> <iframe class="op-runner" src="https://trinket.io/embed/python3/6567b419f9?outputOnly=true" width="100%" height="356" frameborder="0" marginwidth="0" marginheight="0" allowfullscreen loading="lazy" title="Interactive Python runner"></iframe> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-python" data-lang="python"><span class="line"><span class="cl"><span class="kn">import</span> <span class="nn">random</span> </span></span><span class="line"><span class="cl"><span class="kn">import</span> <span class="nn">math</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="n">alpha</span> <span class="o">=</span> <span class="s2">"abcdefghijklmnopqrstuvwxyz"</span> </span></span><span class="line"><span class="cl"><span class="n">num</span> <span class="o">=</span> <span class="s2">"0123456789"</span> </span></span><span class="line"><span class="cl"><span class="n">special</span> <span class="o">=</span> <span class="s2">"@#$%&*"</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="c1"># pass_len = random.randint(8, 13) # without user input</span> </span></span><span class="line"><span class="cl"><span class="n">pass_len</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="nb">input</span><span class="p">(</span><span class="s2">"Enter Password Length"</span><span class="p">))</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="c1"># length of password by 50-30-20 formula</span> </span></span><span class="line"><span class="cl"><span class="n">alpha_len</span> <span class="o">=</span> <span class="n">pass_len</span> <span class="o">//</span> <span class="mi">2</span> </span></span><span class="line"><span class="cl"><span class="n">num_len</span> <span class="o">=</span> <span class="n">math</span><span class="o">.</span><span class="n">ceil</span><span class="p">(</span><span class="n">pass_len</span> <span class="o">*</span> <span class="mi">30</span> <span class="o">/</span> <span class="mi">100</span><span class="p">)</span> </span></span><span class="line"><span class="cl"><span class="n">special_len</span> <span class="o">=</span> <span class="n">pass_len</span> <span class="o">-</span> <span class="p">(</span><span class="n">alpha_len</span> <span class="o">+</span> <span class="n">num_len</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="n">password</span> <span class="o">=</span> <span class="p">[]</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="k">def</span> <span class="nf">generate_pass</span><span class="p">(</span><span class="n">length</span><span class="p">,</span> <span class="n">array</span><span class="p">,</span> <span class="n">is_alpha</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span> </span></span><span class="line"><span class="cl"> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">length</span><span class="p">):</span> </span></span><span class="line"><span class="cl"> <span class="n">index</span> <span class="o">=</span> <span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">array</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="n">character</span> <span class="o">=</span> <span class="n">array</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> </span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="n">is_alpha</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="k">case</span> <span class="o">=</span> <span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="k">case</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="n">character</span> <span class="o">=</span> <span class="n">character</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span> </span></span><span class="line"><span class="cl"> <span class="n">password</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">character</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="c1"># alpha password</span> </span></span><span class="line"><span class="cl"><span class="n">generate_pass</span><span class="p">(</span><span class="n">alpha_len</span><span class="p">,</span> <span class="n">alpha</span><span class="p">,</span> <span class="kc">True</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="c1"># numeric password</span> </span></span><span class="line"><span class="cl"><span class="n">generate_pass</span><span class="p">(</span><span class="n">num_len</span><span class="p">,</span> <span class="n">num</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="c1"># special character password</span> </span></span><span class="line"><span class="cl"><span class="n">generate_pass</span><span class="p">(</span><span class="n">special_len</span><span class="p">,</span> <span class="n">special</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="c1"># shuffle the generated password list</span> </span></span><span class="line"><span class="cl"><span class="n">random</span><span class="o">.</span><span class="n">shuffle</span><span class="p">(</span><span class="n">password</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="c1"># convert list to string</span> </span></span><span class="line"><span class="cl"><span class="n">gen_password</span> <span class="o">=</span> <span class="s2">""</span> </span></span><span class="line"><span class="cl"><span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">password</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="n">gen_password</span> <span class="o">=</span> <span class="n">gen_password</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="n">i</span><span class="p">)</span> </span></span><span class="line"><span class="cl"><span class="nb">print</span><span class="p">(</span><span class="n">gen_password</span><span class="p">)</span> </span></span></code></pre></div> </section>Twin Prime Conjecture in Pythonhttps://rgerjeki.github.io/python-projects/math/twin-prime-conjecture-in-python/Fri, 01 Jan 2021 00:00:00 +0000https://rgerjeki.github.io/python-projects/math/twin-prime-conjecture-in-python/<p>The twin prime conjecture is a famous unsolved problem in number theory that deals with the distribution of twin prime numbers. Twin primes are pairs of prime numbers that differ by 2, such as (3, 5), (5, 7), (11, 13), and so on. The twin prime conjecture states that there are an infinite number of twin prime pairs.</p> <section class="op-runner-block"> <iframe class="op-runner" src="https://trinket.io/embed/python3/493bb53755?outputOnly=true" width="100%" height="356" frameborder="0" marginwidth="0" marginheight="0" allowfullscreen loading="lazy" title="Interactive Python runner"></iframe> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-python" data-lang="python"><span class="line"><span class="cl"><span class="c1"># Program to check if a number is prime or not</span> </span></span><span class="line"><span class="cl"><span class="n">num</span> <span class="o">=</span> <span class="mi">3</span> </span></span><span class="line"><span class="cl"><span class="n">prime</span> <span class="o">=</span> <span class="p">[]</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="c1"># To take input from the user</span> </span></span><span class="line"><span class="cl"><span class="c1"># num = int(input("Enter a number: "))</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="k">while</span> <span class="n">num</span> <span class="o">!=</span> <span class="mi">10000</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="n">num</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="c1"># check for factors</span> </span></span><span class="line"><span class="cl"> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="n">num</span><span class="p">):</span> </span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="p">(</span><span class="n">num</span> <span class="o">%</span> <span class="n">i</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="n">num</span> <span class="o">=</span> <span class="n">num</span> <span class="o">+</span> <span class="mi">1</span> </span></span><span class="line"><span class="cl"> <span class="k">break</span> </span></span><span class="line"><span class="cl"> <span class="k">else</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="n">prime</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">num</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="n">num</span> <span class="o">=</span> <span class="n">num</span> <span class="o">+</span> <span class="mi">1</span> </span></span><span class="line"><span class="cl"> <span class="k">else</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="n">num</span> <span class="o">=</span> <span class="n">num</span> <span class="o">+</span> <span class="mi">1</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="n">end</span> <span class="o">=</span> <span class="kc">False</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"><span class="k">while</span> <span class="n">end</span> <span class="o">==</span> <span class="kc">False</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="c1"># get first number in list</span> </span></span><span class="line"><span class="cl"> <span class="n">first</span> <span class="o">=</span> <span class="n">prime</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"> <span class="c1"># Iterate through the list of prime numbers</span> </span></span><span class="line"><span class="cl"> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">prime</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="n">x</span> <span class="o">-</span> <span class="n">first</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="nb">print</span><span class="p">(</span><span class="n">first</span><span class="p">,</span> <span class="s2">" and "</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="s2">" are twin primes!"</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> <span class="k">else</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="k">continue</span> </span></span><span class="line"><span class="cl"> <span class="n">prime</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl"> <span class="c1"># if the list of prime numbers is empty, exit while loop</span> </span></span><span class="line"><span class="cl"> <span class="k">if</span> <span class="ow">not</span> <span class="n">prime</span><span class="p">:</span> </span></span><span class="line"><span class="cl"> <span class="n">end</span> <span class="o">=</span> <span class="kc">True</span> </span></span></code></pre></div> </section>