Hello I am trying to install the cctbx on a Windows 7 64 bit machine using the following bootstrap.py file: https://raw.githubusercontent.com/cctbx/cctbx_project/ master/libtbx/auto_build/bootstrap.py The script will fail, unless I comment out lines 1101 and 1102: #if self.isPlatformWindows(): #tarurl, arxname, dirpath = MODULES.get_module(module)().get_tarauthenticated(auth=self.get_auth()) If it tries to execute the commented lines, the error will be "KeyError: 'cciuser' in line 590" After commenting this out, it will fail in line 271, with "AttributeError: 'module' object has no attribute '_create_unverified_context'" I can get round that with disabling line 247: if sys.platform == "win32": (i.e. change this to if sys.platform == "xxx":) After that, things start downloading. All appears well until the same thing happens again in another bootstrap.py file in \modules\cctbx_project\libtbx\auto_build\bootstrap.py If I disable *that*, it goes further, but fails finally with ===== Running in build: run configure.py Traceback (most recent call last): File "bootstrap.py", line 2113, in <module> run() File "bootstrap.py", line 2108, in run enable_shared=options.enable_shared, File "bootstrap.py", line 1036, in run i.run() File "bootstrap.py", line 189, in run raise RuntimeError("Could not run %s: File not found" % executable) RuntimeError: Could not run base\bin\python: File not found I guess the automatic tests haven't picked this up, because no authentication is needed, maybe? Greetings Horst