4 examples of 'rename column pandas' in Python

420
def df_column_types_rename(df):
421
    result = [df[x].dtype.name for x in list(df.columns)]
422
    result[:] = [x if x != 'object' else 'string' for x in result]
423
    result[:] = [x if x != 'int64' else 'integer' for x in result]
424
    result[:] = [x if x != 'float64' else 'double' for x in result]
425
    result[:] = [x if x != 'bool' else 'boolean' for x in result]
426
427
    return result

39
def _drop_col(self, df):
40
    '''
41
    Drops last column, which was added in the parsing procedure due to a
42
    trailing white space for each sample in the text file
43
    Arguments:
44
        df: pandas dataframe
45
    Return:
46
        df: original df with last column dropped
47
    '''
48
    return df.drop(df.columns[-1], axis=1)

653
def set_index_post_series(df, index_name, drop, column_dtype):
654
    df2 = df.drop("_partitions", axis=1).set_index("_index", drop=True)
655
    df2.index.name = index_name
656
    df2.columns = df2.columns.astype(column_dtype)
657
    return df2

136
def copy_column(self, to, fro):
137
    """Copy column data
138
139
    Args:
140
        fro (str): column name to copy data from
141
        to (str): column name to copy to
142
    """
143
    logging.debug("copying {} to {}".format(fro, to))
144
    self.df[to] = self.df[fro]