title: ImportError: cannot import name 'Mapping' from 'collections', flask import not working
body: <p>Today I've tried to import an inventory management flask app and i have faced many errors. Hope you can help me, with this project, It's from github <a href="https://github.com/marination/Inventory-Manager" rel="nofollow noreferrer">https://github.com/marination/Inventory-Manager</a></p>
  <p>and these are the errors:</p>
  <pre><code>Traceback (most recent call last):
  File &quot;C:\workspace\Inventory-Manager\run.py&quot;, line 1, in &lt;module&gt;
  from flaskinventory import app
  File &quot;C:\workspace\Inventory-Manager\flaskinventory\__init__.py&quot;, line 1, in &lt;module&gt;
  from flask import Flask
  File &quot;C:\workspace\Inventory-Manager\ven\lib\site-packages\flask\__init__.py&quot;, line 19, in  &lt;module&gt;
  from jinja2 import Markup, escape
  File &quot;C:\workspace\Inventory-Manager\ven\lib\site-packages\jinja2\__init__.py&quot;, line 33, in  &lt;module&gt;
  from jinja2.environment import Environment, Template
  File &quot;C:\workspace\Inventory-Manager\ven\lib\site-packages\jinja2\environment.py&quot;, line 16, in &lt;module&gt;
  from jinja2.defaults import BLOCK_START_STRING, \
  File &quot;C:\workspace\Inventory-Manager\ven\lib\site-packages\jinja2\defaults.py&quot;, line 32, in  &lt;module&gt;
  from jinja2.tests import TESTS as DEFAULT_TESTS
  File &quot;C:\workspace\Inventory-Manager\ven\lib\site-packages\jinja2\tests.py&quot;, line 13, in  &lt;module&gt;
  from collections import Mapping
  ImportError: cannot import name 'Mapping' from 'collections' 
  (C:\Python310\lib\collections\__init__.py)
  </code></pre>