ipython env

[Greg Donald]

Anyone know what's up with environment variables when using ipython?

When I type 'env' and hit return I get a dictionary full of useful
information (trimmed for brevity):

In [1]: env
Out[1]:
{'EDITOR': '/usr/bin/vim',
[...]
'_': '/Library/Frameworks/Python.framewor k/Versions/Current/bin/ipython',
'__CF_USER_TEXT _ENCODING': '0x1F5:0:0'}


But then when try to access the information in the dictionary it
doesn't seem to exist:

In [2]: env['EDITOR']
---------------------------------------------------------------------------
exceptions.Name Error Traceback (most
recent call last)

/Users/destiney/<ipython console>

NameError: name 'env' is not defined


Thanks,


--
Greg Donald

http://destiney.com/

[Larry Bates]

Re: ipython env

Greg Donald wrote:

Anyone know what's up with environment variables when using ipython?
>
When I type 'env' and hit return I get a dictionary full of useful
information (trimmed for brevity):
>
In [1]: env
Out[1]:
{'EDITOR': '/usr/bin/vim',
[...]
'_': '/Library/Frameworks/Python.framewor k/Versions/Current/bin/ipython',
'__CF_USER_TEXT _ENCODING': '0x1F5:0:0'}
>
>
But then when try to access the information in the dictionary it
doesn't seem to exist:
>
In [2]: env['EDITOR']
---------------------------------------------------------------------------
exceptions.Name Error Traceback (most
recent call last)
>
/Users/destiney/<ipython console>
>
NameError: name 'env' is not defined
>
>
Thanks,
>
>

In Cpython you get this with:

import os
os.environ['EDITOR']

-Larry

[Fernando Perez]

Re: ipython env

Larry Bates wrote:

Greg Donald wrote:

>Anyone know what's up with environment variables when using ipython?

[...]

In Cpython you get this with:
>
import os
os.environ['EDITOR']

Yup, same in ipython :) Just to clarify, env is just a convenience function
in ipython that simply does this:

In [4]: env??
Type: Magic function
Base Class: <type 'instancemethod '>
String Form: <bound method InteractiveShel l.magic_env of
<IPython.iplib. InteractiveShel l object at 0x402046ec>>
Namespace: IPython internal
File: /home/fperez/usr/lib/python2.4/site-packages/IPython/Magic.py
Definition: env(self, parameter_s='')
Source:
def magic_env(self, parameter_s='') :
"""List environment variables."""

return os.environ.data


Cheers,

f