Fatal error in launcher: Unable to create process using '"' (even though there are no spaces!)
<p>I am using Python 3.5 and I'm trying to install some modules with pip, but I've had a bunch of difficulties. When I first typed pip install pandas into the Command Prompt, I got this error message:</p>

<pre><code>'pip' is not recognized as an internal or external command
</code></pre>

<p>I went to (<a href="https://stackoverflow.com/questions/23708898/pip-is-not-recognized-as-an-internal-or-external-command">&#39;pip&#39; is not recognized as an internal or external command</a>), and it said to add the path of my pip installation. So I typed the following into my command prompt:</p>

<p><code>setx PATH "%PATH%;C:\Users\sachg\AppData\Local\Programs\Python\Python35\Scripts"</code></p>

<p>This returned:</p>

<pre><code>SUCCESS: Specified value was saved.
</code></pre>

<p>But now when I type pip install pandas, I get:</p>

<pre><code>Fatal error in launcher: Unable to create process using '"'
</code></pre>

<p>Help? </p>