Rename an environment with virtualenvwrapper

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I have an environment called doors and I would like to rename it to django for the virtualenvwrapper.

I"ve noticed that if I just rename the folder ~/.virtualenvs/doors to django, I can now call workon django, but the environment still says (doors)[email protected].

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Rename an environment with virtualenvwrapper rename: Questions

Rename a dictionary key

5 answers

Is there a way to rename a dictionary key, without reassigning its value to a new name and removing the old name key; and without iterating through dict key/value?

In case of OrderedDict, do the same, while keeping that key"s position.

546

Answer #1

For a regular dict, you can use:

mydict[k_new] = mydict.pop(k_old)

This will move the item to the end of the dict, unless k_new was already existing in which case it will overwrite the value in-place.

For a Python 3.7+ dict where you additionally want to preserve the ordering, the simplest is to rebuild an entirely new instance. For example, renaming key 2 to "two":

>>> d = {0:0, 1:1, 2:2, 3:3}
>>> {"two" if k == 2 else k:v for k,v in d.items()}
{0: 0, 1: 1, "two": 2, 3: 3}

The same is true for an OrderedDict, where you can"t use dict comprehension syntax, but you can use a generator expression:

OrderedDict((k_new if k == k_old else k, v) for k, v in od.items())

Modifying the key itself, as the question asks for, is impractical because keys are hashable which usually implies they"re immutable and can"t be modified.

Rename an environment with virtualenvwrapper rename: Questions

How to rename a file using Python

5 answers

I want to change a.txt to b.kml.

485

Answer #1

Use os.rename:

import os

os.rename("a.txt", "b.kml")

Rename an environment with virtualenvwrapper rename: Questions

Rename multiple files in a directory in Python

5 answers

I"m trying to rename some files in a directory using Python.

Say I have a file called CHEESE_CHEESE_TYPE.*** and want to remove CHEESE_ so my resulting filename would be CHEESE_TYPE

I"m trying to use the os.path.split but it"s not working properly. I have also considered using string manipulations, but have not been successful with that either.

410

Answer #1

Use os.rename(src, dst) to rename or move a file or a directory.

$ ls
cheese_cheese_type.bar  cheese_cheese_type.foo
$ python
>>> import os
>>> for filename in os.listdir("."):
...  if filename.startswith("cheese_"):
...    os.rename(filename, filename[7:])
... 
>>> 
$ ls
cheese_type.bar  cheese_type.foo

We hope this article has helped you to resolve the problem. Apart from Rename an environment with virtualenvwrapper, check other rename-related topics.

Want to excel in Python? See our review of the best Python online courses 2022. If you are interested in Data Science, check also how to learn programming in R.

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Oliver Ungerschaft

Milan | 2022-11-30

Simply put and clear. Thank you for sharing. Rename an environment with virtualenvwrapper and other issues with StackOverflow was always my weak point 😁. Will use it in my bachelor thesis

Julia Danburry

New York | 2022-11-30

rename is always a bit confusing 😭 Rename an environment with virtualenvwrapper is not the only problem I encountered. I am just not quite sure it is the best method

Jan Zelotti

Milan | 2022-11-30

Maybe there are another answers? What Rename an environment with virtualenvwrapper exactly means?. I just hope that will not emerge anymore

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