Show line which caused the DeprecationWarning #1831
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When raising a DeprecationWarning, show the line in the application code which caused the warning, rather than the line in Flask e.g. a file `app.py` with: ```python from flask import Flask from flask.ext.babel import Babel ``` will show: ``` app.py:2: ExtDeprecationWarning: Importing flask.ext.babel is deprecated, use flask_babel instead. ``` instead of: ``` /home/mapleoin/venv/local/lib/python2.7/site-packages/flask/exthook.py:71: ExtDeprecationWarning: Importing flask.ext.babel is deprecated, use flask_babel instead. .format(x=modname), ExtDeprecationWarning ```
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When raising a DeprecationWarning, show the line in the application code
which caused the warning, rather than the line in Flask
e.g. a file
app.pywith:will show:
instead of: