The same problem just happened to me. It somehow seems like something triggers setuptools to do an ‘old-style install’ with
distutils, which indeed does not support
You call install.run(self) which calls run(self) in setuptools/setuptools/command/install.py, line 51-74
def run(self): # Explicit request for old-style install? Just do it if self.old_and_unmanageable or self.single_version_externally_managed: return _install.run(self) # Attempt to detect whether we were called from setup() or by another # command. If we were called by setup(), our caller will be the # 'run_command' method in 'distutils.dist', and *its* caller will be # the 'run_commands' method. If we were called any other way, our # immediate caller *might* be 'run_command', but it won't have been # called by 'run_commands'. This is slightly kludgy, but seems to # work. # caller = sys._getframe(2) caller_module = caller.f_globals.get('__name__','') caller_name = caller.f_code.co_name if caller_module != 'distutils.dist' or caller_name!='run_commands': # We weren't called from the command line or setup(), so we # should run in backward-compatibility mode to support bdist_* # commands. _install.run(self) else: self.do_egg_install()
I’m not sure whether this behaviour is intended, but replacing
should solve your problem. At least it works for me, but I would also appreciate a more detailed answer. Thanks!