Bugfix #2755 header counter main_v11.1

[hsoh-u]

Support single point data

Expected Differences

• Do these changes introduce new tools, command line arguments, or configuration file options? [No]
  
  If yes, please describe:
  

• Do these changes modify the structure of existing or add new output data types (e.g. statistic line types or NetCDF variables)? [No]
  
  If yes, please describe:
  

Pull Request Testing

• Describe testing already performed for these changes:
  

/d1/personal/hsoh/git/pull_request/MET_bugfix_2755_python_emb_for_single_point_obs_main_v11.1/bin/plot_point_obs 'PYTHON_NUMPY=/d1/personal/hsoh/git/pull_request/MET_bugfix_2755_python_emb_for_single_point_obs_main_v11.1/share/met/python/examples/read_ascii_point.py /d1/personal/hsoh/data/MET-2755/test_11_column_input.1row' pointdata_numpy_python_single.ps -dotsize 2.0 -v 4

DEBUG 3: Running MET compile time python instance (/nrit/ral/met-python3/bin/python3.10) to run user's python script (/d1/personal/hsoh/git/pull_request/MET_bugfix_2755_python_emb_for_single_point_obs_main_v11.1/share/met/python/examples/read_ascii_point).
Python Script:  '/d1/personal/hsoh/git/pull_request/MET_bugfix_2755_python_emb_for_single_point_obs_main_v11.1/share/met/python/examples/read_ascii_point.py'
Input File:     '/d1/personal/hsoh/data/MET-2755/test_11_column_input.1row'
     point_data: Data Length:   1
     point_data: Data Type:     <class 'list'>
DEBUG 2: Processing 1 observations at 1 locations.

• Recommend testing for the reviewer(s) to perform, including the location of input datasets, and any additional instructions:
  
  test with other data

• Do these changes include sufficient documentation updates, ensuring that no errors or warnings exist in the build of the documentation? [No]

• Do these changes include sufficient testing updates? [No]

• Will this PR result in changes to the test suite? [No]
  
  If yes, describe the new output and/or changes to the existing output:
  

• Please complete this pull request review by [Fill in date].
  

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[JohnHalleyGotway]

I approve of these changes.

I tested this on seneca using the following commands:

cd /d1/personal/johnhg/MET/MET_development/MET-main_v11.1
export PYTHONPATH=/d1/personal/johnhg/MET/MET_development/MET-main_v11.1/share/met/python

# Pick off a single input observation line
head -1 data/sample_obs/ascii/sample_ascii_obs.txt > one_line.txt

# Test stand-alone python script... it works
/nrit/ral/met-python3/bin/python3 scripts/python/examples/read_ascii_point.py one_line.txt

# Test main_v11.1 version of plot_point_obs... it errors out
bin/plot_point_obs 'PYTHON_NUMPY=scripts/python/examples/read_ascii_point.py one_line.txt' plot.ps
# ERROR  : process_point_data_list -> The header is empty. Please check the python script and input

# Checkout the bugfix branch and install
git checkout bugfix_2755_python_emb_for_single_point_obs_main_v11.1
rm src/tools/other/plot_point_obs/plot_point_obs
make install

# Re-test using bugfix version of plot_point_obs... it works!
bin/plot_point_obs 'PYTHON_NUMPY=scripts/python/examples/read_ascii_point.py one_line.txt' plot.ps

# DEBUG 2: Finished plotting 1 locations for plot.ps.

I inspected the small set of code changes and they look fine to me.