Remove astpretty as a dependency of pyflamegpu (#1166)

* Remove astpretty as a dependency of pyflamegpu

astpretty is only used for prettyprint debugging in codegen testing - it is not a pyflamegpu dependency.

This commit also makes it an optional test_codegen.py dependency (but installs it in the test venv by default)

swig/python/CMakeLists.txt

@@ -413,8 +413,8 @@ if(FLAMEGPU_BUILD_PYTHON_VENV)
     # Install the wheel from the dist dir. Specify a version incase the same build dir has been used for a previous build
     # Relaxed the no-index option to allow setup.py to install requirements
     COMMAND ${VENV_PIP} install --force-reinstall --find-links=dist -U ${PYTHON_DISTRIBUTION_NAME}==${FLAMEGPU_VERSION_PYTHON}
-    # install pytest
-    COMMAND ${VENV_PIP} install pytest
+    # install pytest and astpretty 
+    COMMAND ${VENV_PIP} install pytest astpretty
     BYPRODUCTS ${VENV_BYPRODUCTS}
     WORKING_DIRECTORY ${PYTHON_LIB_OUTPUT_DIRECTORY}
     COMMENT "Install ${PYTHON_DISTRIBUTION_NAME} ${FLAMEGPU_VERSION_PYTHON} wheel into ${VENV_DIR}"

swig/python/setup.py.in

@@ -39,6 +39,5 @@ setup(
   '@PYTHON_MODULE_NAME@':['$<TARGET_FILE_NAME:@PYTHON_SWIG_TARGET_NAME@>', @FLAMEGPU_CODEGEN_INCLUDE_CLEAN@@FLAMEGPU_INCLUDE_CLEAN@@FLAMEGPU_PYTHON_PACKAGE_DATA_OS_SPECIFIC@@GLM_INCLUDE_CLEAN@],
   },
   install_requires=[
-    'astpretty',
   ],
 )

tests/python/codegen/test_codegen.py

@@ -5,7 +5,11 @@
 import unittest
 import ast
 import pyflamegpu.codegen
-import astpretty
+# Import astpretty if it is available
+try:
+    import astpretty
+except ImportError:
+    print("Install astpretty if ast tree printing required for test debugging")
 
 
 DEBUG_OUT = True
@@ -688,7 +692,10 @@ def _checkExpected(self, source, expected):
         source = source.strip()
         tree = ast.parse(source)
         if DEBUG_OUT:
-            astpretty.pprint(tree)
+            try:
+                astpretty.pprint(tree)
+            except NameError:
+                pass
         code = pyflamegpu.codegen.codegen(tree)
         # remove new lines
         code = code.strip()