(1) Use PyErr_NewException("module.class", NULL, NULL) to create the
    exception object.

(2) Remove all calls to Py_FatalError(); instead, return or
    ignore the errors -- the import code now checks PyErr_Occurred()
    after calling a module's init function, so it's no longer a
    fatal error for the initialization to fail.

Also did some small cleanups, e.g. removed unnecessary test for
"already initialized" from initfpectl(), and unified
initposix()/initnt().

I haven't checked this very thoroughly, so while the changes are
pretty trivial -- beware of untested code!

deletion of object from list argument during callout to fileno().

1. Renamed

2. Several coding styles were being used here, owing to the multiple
   contributors.  I tried to convert everything to standard "python"
   coding style for indentation, paren and brace placement, etc.

3. There were several potential error conditions that were never being
   checked, and where I saw them, I added checks of return values,
   etc.  I'm pretty sure I got them all.

4. There were some old-style (pre PyArg_ParseTuple) argument
   extraction and these were converted to use PyArg_ParseTuple.

All changes compile and run with the new test_select.py module, at
least on my Solaris/Sparc box.

Setup.in: clarified Tk comments somewhat.
structmodule.c: use memcpy() instead of double precision assignment.

must be set after timeout is initialized.

  meaning as no 4th argument

* tokenizer.[ch]: allow continuation without \ inside () [] {}.

* Fixcprt.py: added [-y file] option, do only files younger than file.
* modsupport.[ch]: added vmkvalue().
* intobject.c: use mkvalue().
* stringobject.c: added "formatstring"; renamed string* to string_*;
  ceval.c: call formatstring for string % value.
* longobject.c: close memory leak in divmod.
* parsetok.c: set result node to NULL when returning an error.

* Fixed memory leaks in socket, select and sv modules: mkvalue("O", v)
  does INCREF(v) so if v is brand new it should be XDECREF'd

* socketmodule.c: get rid of makepair(); fix makesocketaddr to fix
  broken recvfrom()
* socketmodule: get rid of getStrarg()
* ceval.h: move eval_code() to new file eval.h, so compile.h is no
  longer needed.
* ceval.c: move thread comments to ceval.h; always make save/restore
  thread functions available (for dynloaded modules)
* cdmodule.c, listobject.c: don't include compile.h
* flmodule.c: include ceval.h
* import.c: include eval.h instead of ceval.h
* cgen.py: add forground(); noport(); winopen(""); to initgl().
* bltinmodule.c, socketmodule.c, fileobject.c, posixmodule.c,
  selectmodule.c:
  adapt to threads (add BGN/END SAVE macros)
* stdwinmodule.c: adapt to threads and use a special stdwin lock.
* pythonmain.c: don't include getpythonpath().
* pythonrun.c: use BGN/END SAVE instead of direct calls; also more
  BGN/END SAVE calls etc.
* thread.c: bigger stack size for sun; change exit() to _exit()
* threadmodule.c: use BGN/END SAVE macros where possible
* timemodule.c: adapt better to threads; use BGN/END SAVE; add
  longsleep internal function if BSD_TIME; cosmetics

* select.c: bzero -> memset; removed global variable

interfaces to variants of select() system call, "myselect.h".  This includes
adding fileno() methods to files, sockets and stdwin.