Fixed float parsing in clean_osm_data.py (#1089)

* Fixed float parsing in clean_osm_data.py

* Update release_notes.rst to account for float parsing fix

* Add link to PR

---------

Co-authored-by: Ryan Sparks <>
Co-authored-by: Davide Fioriti <67809479+davide-f@users.noreply.github.com>

doc/release_notes.rst

@@ -19,6 +19,7 @@ E.g. if a new rule becomes available describe how to use it `snakemake -j1 run_t
 **Minor Changes and bug-fixing**
 
 * Remove unused `countries_codes` argument from `load_GDP` function in `build_shapes.py` script, which was not being called as intended with positional arguments `PR #1069 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/1069>`__
+* Fixed problematic float parsing (`_parse_float`) in `clean_osm_data.py` to make sure all OSM lines are correctly accounted for `PR #1089 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/1089>`__
 
 
 PyPSA-Earth 0.4.0

scripts/clean_osm_data.py

@@ -551,12 +551,10 @@ def _get_circuits_status(df):
         return len_f, len_c, isna_c, len_cab, isna_cab
 
     def _parse_float(x, ret_def=0.0):
-        if isinstance(x, (int, float)):
+        try:
             return float(x)
-        str_x = str(x)
-        if str_x.isnumeric():
-            return float(str_x)
-        return ret_def
+        except:
+            return ret_def
 
     # cables requirement for circuits calculation
     cables_req = {