Difference between revisions of "Python on the CS Webservers"

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== Python Versions ==
 
== Python Versions ==
  
The webservers have both Python 3 and Python 2 available.  As of January 2020, they are specifically running Python versions 3.4 and 2.6.
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The webservers have both Python 3 and Python 2 available.  <!-- As of December 2020, they are specifically running Python versions 3.6 and 2.6. -->
  
The default Python version (what you get when you run the <code>python</code> program) is Python 2. At some point, that will change to Python 3.  You should specify the Python version in your programs by explicitly using either the <code>python2</code> or <code>python3</code> program.
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The default Python version (what you get when you run the <code>python</code> program) on our ugrad webserver ([https://ugrad.cs.jhu.edu ugrad.cs.jhu.edu]) is Python 3.  If you want Python 2, you must specify it explicitly by using <code>python2</code> at the top of your program.
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The default Python version on the grad webserver ([https://www.cs.jhu.edu www.cs.jhu.edu]) is Python 2, though it will be changing to Python 3 in January 2021 (and is Python 3 already on the testing webserver [https://web2.cs.jhu.edu web2.cs.jhu.edu]).  You should specify the Python version in your programs by explicitly using either the <code>python2</code> or <code>python3</code> program.
  
 
== Python Packages ==
 
== Python Packages ==

Revision as of 16:01, 16 December 2020

Python is supported as a CGI program on the CS Department webservers, but there are a few things you should know about it.

You may also want to read about Python on the CS Linux Clients.

Python Versions

The webservers have both Python 3 and Python 2 available.

The default Python version (what you get when you run the python program) on our ugrad webserver (ugrad.cs.jhu.edu) is Python 3. If you want Python 2, you must specify it explicitly by using python2 at the top of your program.

The default Python version on the grad webserver (www.cs.jhu.edu) is Python 2, though it will be changing to Python 3 in January 2021 (and is Python 3 already on the testing webserver web2.cs.jhu.edu). You should specify the Python version in your programs by explicitly using either the python2 or python3 program.

Python Packages

The set of Python packages installed on the webservers is fairly minimal. If you need a package that's not installed, you should first try installing it yourself into your home directory, using our pip instructions. If that does not work, you can contact us at support@cs.jhu.edu for assistance, but be aware that we are not be able to install every requested package.