ENH: Support for specifying col names for col_space

[VijayantSoni]

TO UPDATE FOLLOWING THINGS

• closes DataFrame.to_html col_space parameter to change width of a specific column only #28917
• tests added / passed
• passes black pandas
• passes git diff upstream/master -u -- "*.py" | flake8 --diff
• whatsnew entry

[pep8speaks]

Hello @VijayantSoni! Thanks for opening this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file pandas/io/formats/html.py:

Line 127:89: E501 line too long (92 > 88 characters)

[jbrockmendel]

Can you add test(s) for the changed behavior

[simonjayhawkins]

@VijayantSoni Thanks for the PR.

[simonjayhawkins]

rather than adding an additional argument, can you make the behavior similar to the formatters argument. (and reuse code would be great). i.e. also accept a list or a dict. (or Sequence or Mapping)

if a list, the number of elements in the list should be the same as the number of columns.

[VijayantSoni]

Hi @simonjayhawkins , Sorry I didn't get your comment. The following statement seems confusing to me.

rather than adding an additional argument, can you make the behavior similar to the formatters argument

Did you mean to NOT add the additional argument col_space_cols and use existing formatters argument for this change or add an argument similar to formatters, which accepts a list or a dict.

Also,

if a list, the number of elements in the list should be the same as the number of columns

Not sure if I understand this, if we want to change width of only a single column, we can pass only that column's name in the list, right ?

Please let me know if I missing something here.

[VijayantSoni]

Hi @simonjayhawkins , did you get a chance to look at the my concern ? I think I need to make the new argument similar to the formatters argument, but would still wait for your confirmation/opinion. Thanks!

[WillAyd]

@VijayantSoni are you still working on this? Agreed with @simonjayhawkins this shouldn't be a new keyword. You can model col_space off of what formatters currently accepts

[VijayantSoni]

@WillAyd yeah, will work on changes.

[VijayantSoni]

@WillAyd @simonjayhawkins Hey guys, just to update, I won't be able to work on this for another 25-20 days. Please feel free to take it up. If this is still open after that time, I will continue.

[simonjayhawkins]

@WillAyd @simonjayhawkins Hey guys, just to update, I won't be able to work on this for another 25-20 days. Please feel free to take it up. If this is still open after that time, I will continue.

@VijayantSoni Thanks for looking into this. I'll close for now to clear the queue. can always re-open. ping when you wish to continue.