Remove space between string after comma in python dataframe column

Question

df1

ID                       Col
1       new york, london school of economics, america
2       california & washington,  harvard university, america

Expected output is :

df1

ID                       Col
1       new york,london school of economics,america
2       california & washington,harvard university,america

My try is :

df1[Col].apply(lambda x : x.str.replace(", ","", regex=True))

Answer 1

If you mention the axis it will be solved

df.apply(lambda x: x.str.replace(', ',',',regex=True),axis=1)