Zachary Ware added the comment:
I agree it would be nice, but I'm not sure how easy or practical it would be to
implement, particularly making sure that NASM is on the PATH. And besides, at
some point, we have to draw the line between what we can reasonably do for a
user and what we can reasonably expect a user to do for themselves. That line
falls at minimum after installation of Visual C++ 2010, which would be nearly
impossible to properly install from a batch script, and is currently also after
installation of NASM and Perl, which are both optional anyway--you can build
Python without NASM, you'll just have build errors and won't have SSL support.
I think that's a reasonable place to keep the line: short of trying to install
external programs for the user.
I think it would be good to have a nice error/warning message in build.bat if
NASM (or MSVC++, for that matter) can't be found, possibly with a URL pointing
to where to look for an installer. Something along the lines of:
"""
where nasm >nul 2>&1
if %ERRORLEVEL% == 1 (
echo NASM not found on PATH. It can be downloaded from www.nasm.us
set /P _continue=Continue without NASM? (y/n)
if %_continue% == n exit /B 1 else echo Continuing...
)
"""
Does that come anywhere close to scratching your itch?
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