Check import warning

[TomAugspurger]

We usually catch uses of deprecated modules, but I think this may have slipped through since it's at import time.

[pep8speaks]

Hello @TomAugspurger! Thanks for submitting the PR.

• There are no PEP8 issues in the file pandas/compat/__init__.py !

• There are no PEP8 issues in the file pandas/core/tools/datetimes.py !

[codecov]

Codecov Report

Merging #24102 into master will increase coverage by 49.2%.
The diff coverage is 75%.

@@            Coverage Diff             @@
##           master   #24102      +/-   ##
==========================================
+ Coverage      43%    92.2%   +49.2%     
==========================================
  Files         161      161              
  Lines       51684    51686       +2     
==========================================
+ Hits        22228    47659   +25431     
+ Misses      29456     4027   -25429

Flag	Coverage Δ
#multiple	90.6% <75%> (?)
#single	43% <75%> (ø)	⬆️

Impacted Files	Coverage Δ
pandas/core/tools/datetimes.py	85.27% <100%> (+51.22%)	⬆️
pandas/compat/__init__.py	58.3% <50%> (+8.1%)	⬆️
pandas/core/computation/pytables.py	92.37% <0%> (+0.3%)	⬆️
pandas/io/pytables.py	92.3% <0%> (+0.92%)	⬆️
pandas/util/_test_decorators.py	93.24% <0%> (+4.05%)	⬆️
pandas/core/config_init.py	99.24% <0%> (+9.84%)	⬆️
pandas/core/reshape/util.py	100% <0%> (+11.53%)	⬆️
pandas/compat/numpy/__init__.py	92.85% <0%> (+14.28%)	⬆️
pandas/core/computation/common.py	85.71% <0%> (+14.28%)	⬆️
... and 120 more

---

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[codecov]

Codecov Report

Merging #24102 into master will decrease coverage by <.01%.
The diff coverage is 75%.

@@            Coverage Diff             @@
##           master   #24102      +/-   ##
==========================================
- Coverage   92.21%    92.2%   -0.01%     
==========================================
  Files         161      161              
  Lines       51684    51686       +2     
==========================================
+ Hits        47658    47659       +1     
- Misses       4026     4027       +1

Flag	Coverage Δ
#multiple	90.6% <75%> (-0.01%)	⬇️
#single	43% <75%> (ø)	⬆️

Impacted Files	Coverage Δ
pandas/core/tools/datetimes.py	85.27% <100%> (ø)	⬆️
pandas/compat/__init__.py	58.3% <50%> (-0.07%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4b5f4d1...2091770. Read the comment docs.

[jreback]

thanks @TomAugspurger