[GIS] ValueError: Invalid field type

geopandaspython

The ValueError: Invalid field type is caused at the last line of this code: fs.to_file(out,encoding='iso8859_7')

Full code:

q=gpd.read_file(fname + "\ASTENOT\simplify_centerline.shp",encoding='utf-8')
q.reset_index(inplace=True)
final = pd.merge(df, q, on=['FID_buffer'], how='inner')

#Turn it to geodataframe so it can be exported to shp
fs=gpd.GeoDataFrame(final, geometry='geometry')


o = fname + "\ASTENOT"
out = o + '\\simplify2.shp'
fs.to_file(out,encoding='iso8859_7')

After printing the data frame, one of the columns has be turned to this b'\xc5\ kind of characters. Apparently this is causing the error but I don't know how to fix it. Probably encoding issue? Tried many ways but no results.
How can this be corrected?

Best Answer

Solved it.

It needed a different encoding than utf-8. I put the iso8859_7 when reading the file and it worked, the letters look normal and it completed the script as intended.

q=gpd.read_file(fname + "\ASTENOT\simplify_centerline.shp",encoding='iso8859_7')<-this changed
q.reset_index(inplace=True)
final = pd.merge(df, q, on=['FID_buffer'], how='inner')

 #Turn it to geodataframe so it can be exported to shp
fs=gpd.GeoDataFrame(final, geometry='geometry')


o = fname + "\ASTENOT"
out = o + '\\simplify2.shp'
fs.to_file(out,encoding='iso8859_7')
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