Create Empty Dataframe in Pandas specifying column types

Question

I\'m trying to create an empty data frame with an index and specify the column types. The way I am doing it is the following:

df = pd.DataFrame(index=[\'pbp\         


        

Answer 1

This really smells like a bug.

Here's another (simpler) solution.

import pandas as pd
import numpy as np

def df_empty(columns, dtypes, index=None):
    assert len(columns)==len(dtypes)
    df = pd.DataFrame(index=index)
    for c,d in zip(columns, dtypes):
        df[c] = pd.Series(dtype=d)
    return df

df = df_empty(['a', 'b'], dtypes=[np.int64, np.int64])
print(list(df.dtypes)) # int64, int64