add hg and python

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+Python for BeOS R5
+
+In Python-2.1, the standard version of the new setup.py program
+will not build the full complement of modules on BeOS.  Instead,
+please replace it with the special BeOS version in Misc/BeOS-setup.py.
+
+To build,
+
+   1)  cp Misc/BeOS-setup.py setup.py
+   2)  ./configure --prefix=/boot/home/config
+   3)  make
+
+The modules will all build, except termios which assumes some flags
+we don't have.  Put a libreadline.a in /boot/home/config/lib to get
+a readline.so for your interactive editing convenience;  NB, not
+libreadline.so, you want to link a static readline library into the
+dynamically loaded Python module.
+
+Test:
+
+   make test
+
+   The BeOS is Not UNIX category:
+ - test_select crashed -- select.error : (-2147459072, 'Bad file descriptor')
+ - test_socket crashed -- exceptions.AttributeError : SOCK_RAW
+ - test_fcntl crashed -- exceptions.IOError: [Errno -2147483643] Invalid argument
+
+   This one is funny!  BeOS does support large files, and that's why
+       we get this error:  the file is too big for my filesystem!
+ - test_largefile crashed -- exceptions.IOError: [Errno -2147459065]
+       No space left on device
+
+ - test_pickle crashed.  This is apparently a serious problem, "complex"
+       number objects reconstructed from a pickle don't compare equal to
+       their ancestors.  But it happens on BeOS PPC only, not Intel.
+
+Install:
+
+   make install
+
+
+- Donn Cave (donn@oz.net)
+  October 4, 2000