Support upper-case file extensions #2683
Description
Description of the desired feature
Currently, PyGMT only allows lower-case file extensions like pdf and png, but doesn't support upper-case extensions like PDF or PNG. The Windows OS is case insensitive, so both lower-case and upper-case file extensions should be allowed.
import pygmt
fig = pygmt.Figure()
fig.basemap(region=[0, 10, 0, 10], frame=True)
fig.savefig("map.PNG")
---------------------------------------------------------------------------
GMTInvalidInput Traceback (most recent call last)
Cell In[4], line 1
----> 1 fig.savefig("map.PNG")
File pygmt/pygmt/figure.py:315, in Figure.savefig(self, fname, transparent, crop, anti_alias, show, **kwargs)
310 if ext == "ps":
311 raise GMTInvalidInput(
312 "Extension '.ps' is not supported. "
313 "Please use '.eps' or '.pdf' instead."
314 )
--> 315 raise GMTInvalidInput(f"Unknown extension '.{ext}'.")
316 fmt = fmts[ext]
317 if transparent:
GMTInvalidInput: Unknown extension '.PNG'.Are you willing to help implement and maintain this feature?
Maybe