With distutils, "optional" C extension module error is fatal
Hi folks.
I'm putting a little time into getting my treap module (like a dict, but
always sorted by key) working with distutils.
I want it to be able to compile and install the Cython version from an
included .c file, or to fall back on a pure python version if that fails.
I'm currently using:
setup(
name='treap',
py_modules=[
'treap',
'py_treap',
'nest',
],
# ext_modules=cythonize("pyx_treap.pyx"),
ext_modules=[Extension('pyx_treap', ['pyx_treap.c'], optional=True)],
# setup_requires=[
# 'Cython'
# ],
version=version,
description='Python implementation of treaps,
)
...plus a few more options to setup that don't seem relevant.
If I run python3.6 setup.py build, I get:
running build
running build_py
creating build
creating build/lib.linux-x86_64-3.6
copying treap.py -> build/lib.linux-x86_64-3.6
copying py_treap.py -> build/lib.linux-x86_64-3.6
copying nest.py -> build/lib.linux-x86_64-3.6
running build_ext
building 'pyx_treap' extension
creating build/temp.linux-x86_64-3.6
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -g
-fstack-protector-strong -Wformat -Werror=format-security -Wdate-time
-D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/python3.6m -c pyx_treap.c -o
build/temp.linux-x86_64-3.6/pyx_treap.o
pyx_treap.c:4:10: fatal error: Python.h: No such file or directory
#include "Python.h"
^~
compilation terminated.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
So it seems like despite using Extension('pyx_treap', ['pyx_treap.c'],
optional=True), the cython version is not optional.
Am I missing something? Why doesn't it just continue with the pure python
modules?
I realize I could install python3.6-dev or similar to eliminate the error,
but I don't want to assume the user knows that.
Thanks!
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'%Y' in strftime() vs. strptime()
Hi list,
I've just stumbled upon a strange phaenomenon and I'm wondering if it's
a bug. Short and sweet:
Python 3.7.3 (default, Oct 7 2019, 12:56:13)
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from datetime import datetime as d
>>> x = d(1, 1, 1)
>>> x.strftime("%Y-%m-%d")
'1-01-01'
>>> d.strptime(x.strftime("%Y-%m-%d"), "%Y-%m-%d")
Traceback (most recent call last):
File "", line 1, in
File "/usr/lib/python3.7/_strptime.py", line 577, in _strptime_datetime
tt, fraction, gmtoff_fraction = _strptime(data_string, format)
File "/usr/lib/python3.7/_strptime.py", line 359, in _strptime
(data_string, format))
ValueError: time data '1-01-01' does not match format '%Y-%m-%d'
>>> d.strptime("0001-01-01", "%Y-%m-%d")
datetime.datetime(1, 1, 1, 0, 0)
I.e. for years that are not 4 digits longs, strftime() produces no
leading zeros for the '%Y' replacement, but strptime() requires leading
zeros.
Is this expected behavior? Shouldn't %Y be consistent across both?
All the best,
Johannes
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Re: '%Y' in strftime() vs. strptime()
On 12/29/19, Johannes Bauer wrote:
>
x = d(1, 1, 1)
>
x.strftime("%Y-%m-%d")
> '1-01-01'
The default padding depends on the platform strftime. POSIX strftime
[1] supports an extension of ISO C that allows specifying the "0" pad
character and minimum field width, e.g. "%04Y-%02m-%02d".
[1] https://pubs.opengroup.org/onlinepubs/9699919799/functions/strftime.html
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name 'sys' is not defined
Deal all, Could you please help me how can I avoid this problem my Jupyter Notebook code was help pls # init a treemix analysis object with some param arguments tmx = ipa.treemix( data=data, imap=imap, minmap=minmap, seed=123456, root="Petronia_petronia", m=2, ) error NameError Traceback (most recent call last) in 6 seed=123456, 7 root="Petronia_petronia", > 8 m=2, 9 ) ~/opt/miniconda3/envs/py3/lib/python3.6/site-packages/ipyrad/analysis/treemix.py in __init__(self, data, name, workdir, imap, minmap, seed, quiet, raise_root_error, binary, *args, **kwargs) 118 119 # others --> 120 self.binary = os.path.join(sys.prefix, "bin", "treemix") 121 self.binary = (binary if binary else self.binary) 122 self.raise_root_error = raise_root_error NameError: name 'sys' is not defined -- https://mail.python.org/mailman/listinfo/python-list
Re: name 'sys' is not defined
On 2019-12-30 7:20 AM, safiq...@gmail.com wrote: Deal all, Could you please help me how can I avoid this problem my Jupyter Notebook code was help pls [snip] NameError: name 'sys' is not defined I know nothing about Jupyter Notebook but somewhere, usually at the top, you have to add this line - import sys HTH Frank Millman -- https://mail.python.org/mailman/listinfo/python-list
