ENH: Show data types under column names

[pwwang]

Is your feature request related to a problem?

Describe the solution you'd like

Data types are shown directly in R under column names:

# A tibble: 4 × 2
      x     y
  <dbl> <int>
1     1     1
2     1     2
3     2     3
4     2     4

Wish pandas could have this feature as well.

API breaking implications

Describe alternatives you've considered

https://github.com/pwwang/pdtypes

Turn this	into

Just wondering if this is a welcome to become a PR.

Additional context

[jreback]

we already have df.dtypes

not sure this adds anything here

[attack68]

duplicate of #43875

[attack68]

we already have df.dtypes

not sure this adds anything here

I think seeing dtypes in context of the data is useful. Sometimes when importing big data the column name is not as informative as seeing the structure of the data and column name together, and then checking the dtype.

[phofl]

Closing as duplicate then @attack68 ?