pandas recognize type from strings

1import pandas as pd
2
3df = pd.DataFrame({'A': [1, None, 'hello', True, 'world', 'mystr', 34.11]})
4
5df['stringy'] = [isinstance(x, str) for x in df.A]
6
7#        A stringy
8# 0      1   False
9# 1   None   False
10# 2  hello    True
11# 3   True   False
12# 4  world    True
13# 5  mystr    True
14# 6  34.11   False