Rename an environment with virtualenvwrapper

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.

Use os.rename:

import os

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

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

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

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

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