Can Not Activate Environment

[snippsat]

How so? Shouldn't the activation script provide the path?

No when outside of environment folder must specificity path to folder.

# Can not find it
tom@tom-VirtualBox:~$ source bin/activate
bash: bin/activate: No such file or directory

# If give path ok
tom@tom-VirtualBox:~$ source my_env/bin/activate
(my_env) tom@tom-VirtualBox:~$ deactivate
tom@tom-VirtualBox:~$

Same on windows but there there is no source,so then just give path to activate.bat on the environment that want to activate.
Let say i'm in root C:\ and want to activate a environment on G:\ drive.

C:\
λ G:\div_code\flaskex_env\Scripts\activate.bat

(flaskex_env) C:\
λ pip -V
pip 21.1.1 from g:\div_code\flaskex_env\lib\site-packages\pip (python 3.9)

(flaskex_env) C:\
λ deactivate
C:\