Ao utilizar a o seguinte:
metro=metro.to_crs('+proj=utm +zone=23 +south +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=km +no_defs')
O console me retorna:
Traceback (most recent call last):
File "<ipython-input-13-fa5367ff8018>", line 1, in <module>
metro=metro.to_crs('+proj=utm +zone=23 +south +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=km +no_defs')
File "C:\ProgramData\Anaconda3\lib\site-packages\geopandas\geodataframe.py", line 386, in to_crs
geom = df.geometry.to_crs(crs=crs, epsg=epsg)
File "C:\ProgramData\Anaconda3\lib\site-packages\geopandas\geoseries.py", line 285, in to_crs
proj_in = pyproj.Proj(self.crs, preserve_units=True)
File "C:\ProgramData\Anaconda3\lib\site-packages\pyproj\__init__.py", line 362, in __new__
return _proj.Proj.__new__(self, projstring)
File "_proj.pyx", line 129, in _proj.Proj.__cinit__
RuntimeError: b'no arguments in initialization list'