move file we are deleting to a ~ backup

Author: JohnMount

coverage.txt

@@ -1,44 +0,0 @@
-============================= test session starts ==============================
-platform darwin -- Python 3.9.12, pytest-7.1.1, pluggy-1.0.0
-rootdir: /Users/johnmount/Documents/work/wvpy/pkg
-plugins: anyio-3.5.0, cov-3.0.0
-collected 20 items
-
-tests/test_cross_plan1.py .                                              [  5%]
-tests/test_cross_predict.py ..                                           [ 15%]
-tests/test_deviance_calc.py .                                            [ 20%]
-tests/test_eval_fn_pre_row.py .                                          [ 25%]
-tests/test_match_auc.py .                                                [ 30%]
-tests/test_nb_fns.py ....                                                [ 50%]
-tests/test_onehot.py ..                                                  [ 60%]
-tests/test_perm_score_vars.py .                                          [ 65%]
-tests/test_plots.py .                                                    [ 70%]
-tests/test_se.py .                                                       [ 75%]
-tests/test_search_grid.py ..                                             [ 85%]
-tests/test_stats1.py .                                                   [ 90%]
-tests/test_threshold_stats.py .                                          [ 95%]
-tests/test_typs_in_frame.py .                                            [100%]
-
-=============================== warnings summary ===============================
-../../../../opt/anaconda3/envs/research_env/lib/python3.9/site-packages/seaborn/rcmod.py:82
-  /Users/johnmount/opt/anaconda3/envs/research_env/lib/python3.9/site-packages/seaborn/rcmod.py:82: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
-    if LooseVersion(mpl.__version__) >= "3.0":
-
-../../../../opt/anaconda3/envs/research_env/lib/python3.9/site-packages/setuptools/_distutils/version.py:351
-  /Users/johnmount/opt/anaconda3/envs/research_env/lib/python3.9/site-packages/setuptools/_distutils/version.py:351: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
-    other = LooseVersion(other)
-
--- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
-
----------- coverage: platform darwin, python 3.9.12-final-0 ----------
-Name                      Stmts   Miss  Cover
----------------------------------------------
-wvpy/__init__.py              3      0   100%
-wvpy/jtools.py              146     32    78%
-wvpy/pysheet.py              74     74     0%
-wvpy/render_workbook.py      47     47     0%
-wvpy/util.py                321      7    98%
----------------------------------------------
-TOTAL                       591    160    73%
-
-======================= 20 passed, 2 warnings in 17.61s ========================

pkg/build/lib/wvpy/pysheet.py

@@ -79,9 +79,14 @@ def main() -> int:
     # do any deletions
     if args.delete:
         for input_file_name, output_file_name in tasks:
+            input_backup_file = f'{input_file_name}~'
             if not args.quiet:
-                print(f"removing {input_file_name}")
-            os.remove(input_file_name)  # Note: we remove input as we are replacing it with output
+                print(f"moving {input_file_name} to {input_backup_file}")
+            try:
+                os.remove(input_backup_file)
+            except FileNotFoundError:
+                pass
+            os.rename(input_file_name, input_backup_file)
     return 0