Getting error when exporting ipa in development method

Question

When I select IPA distribution method as development and try to export, I am getting this same error for all my projects, and I am not using python anywhere so why I am getting this error. Please help me to solve this error.

I am using Xcode 9.2

ipatool failed with an exception:#<RuntimeError: Couldn't locate python in /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/local/bin /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/libexec /Applications/Xcode.app/Contents/Developer/usr/bin /Applications/Xcode.app/Contents/Developer/usr/local/bin /Applications/Xcode.app/Contents/Developer/Tools /usr/bin /bin /usr/sbin /sbin>
/Applications/Xcode.app/Contents/Developer/usr/bin/ipatool:157:in `locate_tool'
/Applications/Xcode.app/Contents/Developer/usr/bin/ipatool:137:in `unicode_equal?'
/Applications/Xcode.app/Contents/Developer/usr/bin/ipatool:1703:in `block in MakeFileSystemNode'
/Applications/Xcode.app/Contents/Developer/usr/bin/ipatool:1703:in `each'
/Applications/Xcode.app/Contents/Developer/usr/bin/ipatool:1703:in `detect'

Answer 1

I found the problem, thanks to Alper to guiding me in the right direction, when we create or export an IPA Xcode needs python which is located in /usr/bin/python path, and in my case I have installed python but it was not on that location, so I search for python executable file in my system and copy paste that executable file on this /usr/bin/ location, and it work's.