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I have installed python 2.7 in ubuntu 10.04:

./configure
make
sudo make altinstall

Python works properly:

~$ python2.7
Python 2.7 (r27:82500, Mar  6 2013, 15:39:19)
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>

But: 

~$ virtualenv -p python2.7 ~/virtualenv/python27
Running virtualenv with interpreter /usr/local/bin/python2.7
Traceback (most recent call last):
  File "/usr/local/lib/python2.6/dist-packages/virtualenv.py", line 1378, in <module>
    """.decode("base64").decode("zlib")
LookupError: unknown encoding: zlib.

WTF?

user2140513
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    Did that `make` return a line telling you it couldn't find the bits needs to make certain libraries, one of which is zlib? – Wooble Mar 06 '13 at 15:17
  • possible duplicate of [no module named zlib](http://stackoverflow.com/questions/6169522/no-module-named-zlib) – Wooble Mar 06 '13 at 15:18

1 Answers1

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You are using virtualenv of the 2.6 python: check your lines:

Traceback (most recent call last):
  File "/usr/local/lib/python2.6/dist-packages/virtualenv.py"

Do you have virtualenv installed in the python2.7? normally is named virtualenv2.7 if you have both.

oteCortes
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