Windows Python Command Line Version

Question

New to Python and programming in general. I want to "install" the module from the command line for v 2.6, but it looks like my Python default is 2.5. (python --version returns 2.5.4)

How can I run python setup.py build / install on 2.6 instead?

Thank you very much in advance,

Brock

Answer 1

It depends on your operating system. If you have python 2.6 installed, you need to change the environment path to point to the 2.6 executable, not the 2.5 executable. Do a Google search to change your PATH variable in your operating system.

Answer 2

You can use explicit paths:

c:\python26\python setup.py install
c:\python25\python setup.py install

Python PyLauncher. , Python Python.

:

py -3 setup.py # run latest Python 3
py -2 setup.py # run latest Python 2
py -3.3
py -2.7-32 # use 32-bit version
py # run default version

PY_PYTHON, . PY_PYTHON=3 ( Python 3).

Answer 3

1) python 2) 3) ,

, https://www.youtube.com/watch?v=ynDlb0n27cw

Answer 4

, . , python, , python . ( )

import sys

from _winreg import *

# tweak as necessary
version = sys.version[:3]
installpath = sys.prefix

regpath = "SOFTWARE\\Python\\Pythoncore\\%s\\" % (version)
installkey = "InstallPath"
pythonkey = "PythonPath"
pythonpath = "%s;%s\\Lib\\;%s\\DLLs\\" % (
    installpath, installpath, installpath
)

def RegisterPy():
    try:
        reg = OpenKey(HKEY_LOCAL_MACHINE, regpath)
    except EnvironmentError:
        try:
            reg = CreateKey(HKEY_LOCAL_MACHINE, regpath)
        except Exception, e:
            print "*** Unable to register: %s" % e
            return

    SetValue(reg, installkey, REG_SZ, installpath)
    SetValue(reg, pythonkey, REG_SZ, pythonpath)
    CloseKey(reg)
    print "--- Python %s at %s is now registered!" % (version, installpath)

if __name__ == "__main__":
    RegisterPy()

Answer 5

Windows, Python , , Python, :

> python --version
> set PATH=<path-to-desired-python-version>;%PATH%
> python --version

:

> python --version
Python 3.4.2
> set PATH=C:\tools\python2\;%PATH%
> python --version
Python 2.7.9
> npm install...
(success)

This allowed a third-party program to successfully install. Modifying PATH only affects programs running in the same command-line session, and lasts as long as the command-line session.

Answer 6

Download Python v2.6.