Pandas: Combining Two DataFrames Horizontally [duplicate]

concat is indeed what you’re looking for, you just have to pass it a different value for the “axis” argument than the default. Code sample below:

import pandas as pd

df1 = pd.DataFrame({
    'A': [1,2,3,4,5],
    'B': [1,2,3,4,5]
})

df2 = pd.DataFrame({
    'C': [1,2,3,4,5],
    'D': [1,2,3,4,5]
})

df_concat = pd.concat([df1, df2], axis=1)

print(df_concat)

With the result being:

   A  B  C  D
0  1  1  1  1
1  2  2  2  2
2  3  3  3  3
3  4  4  4  4
4  5  5  5  5