Hi,
I am in the midst of porting a project to Cython, and have run into a
few issues. I had been using Pyrex 0.9.8.4 and am trying the latest
public release of Cython (0.9.8.1.1). I'm interfacing to the HDF5 C
library, which has a huge API. Since I heard Cython (unlike Pyrex)
supports "cimport *", I wanted consolidate the whole thing into
"hdf5.pxd" and simply cimport everything into each module I'm building.
However, this doesn't seem to import typedefs:
# file "ext.pxd":
cdef extern from "something.h":
ctypedef int INT
# file "implementation.pyx":
from ext cimport *
def foo():
cdef INT q = 1
print q
This fails with a syntax error. If I replace the cimport line with
"from ext cimport INT" it works fine. Is this a bug or an intentional
limitation (or am I using it wrong)?
The second issue is that Cython.Compiler.Main.compile_multiple doesn't
work if you use either the "recursive" or "timestamps" options; I get a
NameError referring to what seems to be a missing global variable
"context" inside Cython itself:
/usr/lib/python2.5/site-packages/Cython/Compiler/Main.py in
compile_multiple(sources, options)
639 # Compiling multiple sources in one context doesn't
quite
640 # work properly yet.
--> 641 if not timestamps or
context.c_file_out_of_date(source):
642 if verbose:
643 sys.stderr.write("Compiling %s\n" % source)
<type 'exceptions.NameError'>: global name 'context' is not defined
I'd like to eventually use this if possible because it lets me run
Cython from a setup script independent of the actual C build process.
Will this be fixed in a later version of Cython?
Finally I noticed that Cython doesn't have the new Pyrex "typecheck"
builtin. I've switched back to "isinstance" for now. Is there/will
there be a Cython equivalent?
Other than that everything works! Thanks in particular for the
decorator support, which is the main reason I'm switching.
Andrew Collette
_______________________________________________
Cython-dev mailing list
[email protected]
http://codespeak.net/mailman/listinfo/cython-dev
