List of Deprecation warnings

[x] WARNING: DEPRECATED: the 'inequality' function has been moved to 'pyomo.core.expr.relational_expr.inequality'. Please update your import. (deprecated in 6.4.3) (called from :219)
[ ] ../lib/python3.8/site-packages/pyproj/crs/crs.py:141: FutureWarning: '+init=: ' syntax is deprecated. ':' is the preferred initialization method. When making the change, be mindful of axis order changes: https://pyproj4.github.io/pyproj/stable/gotchas.html#axis-order-changes-in-proj-6
[ ] /eTrago/etrago/cluster/gas.py:671: FutureWarning: The default dtype for empty Series will be 'object' instead of 'float64' in a future version. Specify a dtype explicitly to silence this warning. clusters = pd.Series()
[ ] lib/python3.8/site-packages/geopandas/array.py:1406: UserWarning: CRS not set for some of the concatenation inputs. Setting output's CRS as WGS 84 (the single non-null crs provided).
[x] lib/python3.8/site-packages/sklearn/cluster/_agglomerative.py:983: FutureWarning: Attribute affinity was deprecated in version 1.2 and will be removed in 1.4. Use metric instead
[x] WARNING:pypsa.components:Solving optimisation problem with pyomo.In PyPSA version 0.21 the default will change to n.lopf(pyomo=False).Explicitly set n.lopf(pyomo=True) to retain current behaviour.
[x] lib/python3.8/site-packages/pypsa/networkclustering.py:323: FutureWarning: Not prepending group keys to the result index of transform-like apply. In the future, the group keys will be included in the index, regardless of whether the applied function returns a like-indexed object. To preserve the previous behavior, use
```
>>> .groupby(..., group_keys=False)
```
To adopt the future behavior and silence this warning, use
```
>>> .groupby(..., group_keys=True)
```

openego / eTraGo

List of Deprecation warnings #585