Check for None in select function for PyComponent

[etihwo]

Call the _create__view function when _view__ is None, to avoid the error 'NoneType' object has no attribute 'select' Fix #7835

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 86.65%. Comparing base (60d506e) to head (c311d05).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
panel/custom.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7837      +/-   ##
==========================================
- Coverage   87.07%   86.65%   -0.43%     
==========================================
  Files         346      346              
  Lines       52941    52943       +2     
==========================================
- Hits        46100    45876     -224     
- Misses       6841     7067     +226     

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