Created
April 5, 2022 10:43
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how to reload modules in django shell
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./manage.py shell | |
In [1]: %load_ext autoreload | |
In [2]: %autoreload 2 | |
And from now all imported modules would be refreshed before evaluate. | |
In [3]: from x import print_something | |
In [4]: print_something() | |
Out[4]: 'Something' | |
# Do changes in print_something method in x.py file. | |
In [5]: print_something() | |
Out[5]: 'Something else' | |
Works also if something was imported before %load_ext autoreload command. | |
./manage.py shell | |
In [1]: from x import print_something | |
In [2]: print_something() | |
Out[2]: 'Something' | |
# Do changes in print_something method in x.py file. | |
In [3]: %load_ext autoreload | |
In [4]: %autoreload 2 | |
In [5]: print_something() | |
Out[5]: 'Something else' | |
There is possible also prevent some imports from refreshing with %aimport command and 3 autoreload strategies: | |
%autoreload | |
Reload all modules (except those excluded by %aimport) automatically now. | |
%autoreload 0 | |
Disable automatic reloading. | |
%autoreload 1 | |
Reload all modules imported with %aimport every time before executing the Python code typed. | |
%autoreload 2 | |
Reload all modules (except those excluded by %aimport) every time before executing the Python code typed. | |
%aimport | |
List modules which are to be automatically imported or not to be imported. | |
%aimport foo | |
Import module ‘foo’ and mark it to be autoreloaded for %autoreload 1 | |
%aimport -foo | |
Mark module ‘foo’ to not be autoreloaded. | |
This generally works good for my use, but there are some cavetas: | |
Replacing code objects does not always succeed: changing a @property in a class to an ordinary method or a method to a member variable can cause problems (but in old objects only). | |
Functions that are removed (eg. via monkey-patching) from a module before it is reloaded are not upgraded. | |
C extension modules cannot be reloaded, and so cannot be autoreloaded. |
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