title: I don´t know what version of Python I have, and problem coding my first website
body: <p>I have installed the latest version of python (3.7.3)</p>
  
  <p>When I go to cmd and I put <code>py</code>, it says my version is 3.7.3. But the problem comes when i put <code>python</code> or <code>python --version</code>, because it says that my version is 2.7.10. And i don´t know why. </p>
  
  <hr>
  
  <p>I´m learning how to do my first website, and i´m just following what the tutorial says. I don´t know if the version of python is the cause of the problem, but i tell you what happens to me appart from not knowing what version i have.</p>
  
  <p>I´m using Visual Studio Code and the guy from the tutorial said that we had to have at least a version of python over 3, and to find this out we have to write on CMD <code>python --version</code>. Then we had to know what version of pip we have putting <code>pip --version</code>.</p>
  
  <p>Now I´ll show you the code he did and I copied, I had to install flask from CMD putting <code>pip install flask</code>. </p>
  
  <p>So when I go to CMD to run this as the youtuber did, putting <code>cd Desktop</code> then <code>cd NoFear</code> (NoFear is the name of the folder) and finally <code>python index.py</code>. I got the following output:</p>
  
  <pre class="lang-none prettyprint-override"><code>C:\Users\Usuario\Desktop\NoFear&gt;python index.py
  Traceback (most recent call last):
    File "index.py", line 1, in &lt;module&gt;
      from flask import Flask
  ImportError: No module named flask
  
  C:\Users\Usuario&gt;py
  Python 3.7.3 (v3.7.3:ef4ec6ed12, Mar 25 2019, 21:26:53) [MSC v.1916 32 bit (Intel)] on win32
  Type "help", "copyright", "credits" or "license" for more information.
  &gt;&gt;&gt;
  
  C:\Users\Usuario&gt;python
  Python 2.7.10 (default, May 23 2015, 09:44:00) [MSC v.1500 64 bit (AMD64)] on win32
  Type "help", "copyright", "credits" or "license" for more information.
  &gt;&gt;&gt;
  
  C:\Users\Usuario&gt;python --version
  Python 2.7.10
  </code></pre>
  
  <pre class="lang-py prettyprint-override"><code>from flask import Flask
  
  app = Flask(__name__)
  
  @app.route('/')
  def home():
      return 'Hello World'
  
  if __name__=='__main__':
      app.run()
  </code></pre>