Installing python

Question

I have tried to install Python 3.4 on Windows 7 using the following guide I have added the following to my Path in system environmental variables

C:\Python34\;C:\Python34\Scripts;

When I open up the Python command line and type the following (as instructed in the tutorial) I receive an error message printed below

Python 3.4.2 (v3.4.2:ab2c023a9432, Oct 6 2014, 22:15:05) [MSC v.1600 32 bit (In tel)] on win32 Type "help", "copyright", "credits" or "license" for more information.

python --version <- what i type

Traceback (most recent call last): File "", line 1, in NameError: name 'python' is not defined

Can anyone help me out?

You have to write python --version in the systems command line, not in the interactive Python interpreter. — Matthias
– Matthias, Commented Nov 11, 2014 at 20:27

cslecours · Accepted Answer · 2014-11-11 20:26:06Z

1

You need to type python --version from the command line. Not when you are already running python.

answered Nov 11, 2014 at 20:26

cslecours

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3 Comments

algorhythm Over a year ago

Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation. All rights reserved. C:\Users\Chris>cd .. C:\Users>cd .. C:\>python Python 3.4.2 (v3.4.2:ab2c023a9432, Oct 6 2014, 22:15:05) [MSC v.1600 32 bit (In tel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> python --version Traceback (most recent call last): File "<stdin>", line 1, in <module> NameError: name 'python' is not defined >>>

algorhythm Over a year ago

I am having the same error with the CMD as shown above

cslecours Over a year ago

C:\Users\Chris>python --version

Andy · Accepted Answer · 2014-11-11 20:33:19Z

1

As has been mentioned, you need to run your command from the command prompt:

python --version

However, if you are in the python interpreter, you can find the current version with this code:

import sys
print (sys.version)

answered Nov 11, 2014 at 20:33

Andy♦

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1 Comment

algorhythm Over a year ago

I am having the same trouble in cmd...Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation. All rights reserved. C:\Users\Chris>cd .. C:\Users>cd .. C:\>python Python 3.4.2 (v3.4.2:ab2c023a9432, Oct 6 2014, 22:15:05) [MSC v.1600 32 bit (In tel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> python --version Traceback (most recent call last): File "<stdin>", line 1, in <module> NameError: name 'python' is not defined >>>

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