fix: provide python3 alias on windows

Author: tony-p

recipe/build_base.bat

@@ -181,6 +181,9 @@ if errorlevel 1 exit 1
 :: We need our Python to be found!
 if "%_D%" neq "" copy %PREFIX%\python%_D%.exe %PREFIX%\python.exe
 
+:: Provide a python3 alias
+copy %PREFIX%\python.exe %PREFIX%\python3.exe
+
 %PREFIX%\python.exe -Wi %PREFIX%\Lib\compileall.py -f -q -x "bad_coding|badsyntax|py2_" %PREFIX%\Lib
 if errorlevel 1 exit 1
 
@@ -210,3 +213,8 @@ echo "Testing import of _sqlite3 (DLL located via PATH needed) does not print: T
 %CONDA_EXE% run -p %PREFIX% cd %PREFIX% & %PREFIX%\python.exe -v -c "import _sqlite3" 2>&1
 %CONDA_EXE% run -p %PREFIX% cd %PREFIX% & %PREFIX%\python.exe -v -c "import _sqlite3" 2>&1 | findstr /r /c:"The specified module could not be found"
 if %errorlevel% neq 1 exit /b 1
+
+:: Also check python3 alias
+echo "Testing print() does not print: Hello with python3"
+%CONDA_EXE% run -p %PREFIX% cd %PREFIX% & %PREFIX%\python3.exe -c "print()" 2>&1 | findstr /r /c:"Hello"
+if %errorlevel% neq 1 exit /b 1

recipe/meta.yaml

@@ -4,7 +4,7 @@
 {% set ver2 = '.'.join(version.split('.')[0:2]) %}
 {% set ver2nd = ''.join(version.split('.')[0:2]) %}
 {% set ver3nd = ''.join(version.split('.')[0:3]) %}
-{% set build_number = 0 %}
+{% set build_number = 1 %}
 
 # this makes the linter happy
 {% set channel_targets = channel_targets or 'conda-forge main' %}