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Batuhan Berk Başoğlu 2020-10-02 21:26:03 -04:00
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#!/usr/bin/env python3
"""
f2py2e - Fortran to Python C/API generator. 2nd Edition.
See __usage__ below.
Copyright 1999--2011 Pearu Peterson all rights reserved,
Pearu Peterson <pearu@cens.ioc.ee>
Permission to use, modify, and distribute this software is given under the
terms of the NumPy License.
NO WARRANTY IS EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
$Date: 2005/05/06 08:31:19 $
Pearu Peterson
"""
import sys
import os
import pprint
import re
from . import crackfortran
from . import rules
from . import cb_rules
from . import auxfuncs
from . import cfuncs
from . import f90mod_rules
from . import __version__
from . import capi_maps
f2py_version = __version__.version
errmess = sys.stderr.write
# outmess=sys.stdout.write
show = pprint.pprint
outmess = auxfuncs.outmess
try:
from numpy import __version__ as numpy_version
except ImportError:
numpy_version = 'N/A'
__usage__ = """\
Usage:
1) To construct extension module sources:
f2py [<options>] <fortran files> [[[only:]||[skip:]] \\
<fortran functions> ] \\
[: <fortran files> ...]
2) To compile fortran files and build extension modules:
f2py -c [<options>, <build_flib options>, <extra options>] <fortran files>
3) To generate signature files:
f2py -h <filename.pyf> ...< same options as in (1) >
Description: This program generates a Python C/API file (<modulename>module.c)
that contains wrappers for given fortran functions so that they
can be called from Python. With the -c option the corresponding
extension modules are built.
Options:
--2d-numpy Use numpy.f2py tool with NumPy support. [DEFAULT]
--2d-numeric Use f2py2e tool with Numeric support.
--2d-numarray Use f2py2e tool with Numarray support.
--g3-numpy Use 3rd generation f2py from the separate f2py package.
[NOT AVAILABLE YET]
-h <filename> Write signatures of the fortran routines to file <filename>
and exit. You can then edit <filename> and use it instead
of <fortran files>. If <filename>==stdout then the
signatures are printed to stdout.
<fortran functions> Names of fortran routines for which Python C/API
functions will be generated. Default is all that are found
in <fortran files>.
<fortran files> Paths to fortran/signature files that will be scanned for
<fortran functions> in order to determine their signatures.
skip: Ignore fortran functions that follow until `:'.
only: Use only fortran functions that follow until `:'.
: Get back to <fortran files> mode.
-m <modulename> Name of the module; f2py generates a Python/C API
file <modulename>module.c or extension module <modulename>.
Default is 'untitled'.
--[no-]lower Do [not] lower the cases in <fortran files>. By default,
--lower is assumed with -h key, and --no-lower without -h key.
--build-dir <dirname> All f2py generated files are created in <dirname>.
Default is tempfile.mkdtemp().
--overwrite-signature Overwrite existing signature file.
--[no-]latex-doc Create (or not) <modulename>module.tex.
Default is --no-latex-doc.
--short-latex Create 'incomplete' LaTeX document (without commands
\\documentclass, \\tableofcontents, and \\begin{document},
\\end{document}).
--[no-]rest-doc Create (or not) <modulename>module.rst.
Default is --no-rest-doc.
--debug-capi Create C/API code that reports the state of the wrappers
during runtime. Useful for debugging.
--[no-]wrap-functions Create Fortran subroutine wrappers to Fortran 77
functions. --wrap-functions is default because it ensures
maximum portability/compiler independence.
--include-paths <path1>:<path2>:... Search include files from the given
directories.
--help-link [..] List system resources found by system_info.py. See also
--link-<resource> switch below. [..] is optional list
of resources names. E.g. try 'f2py --help-link lapack_opt'.
--f2cmap <filename> Load Fortran-to-Python KIND specification from the given
file. Default: .f2py_f2cmap in current directory.
--quiet Run quietly.
--verbose Run with extra verbosity.
-v Print f2py version ID and exit.
numpy.distutils options (only effective with -c):
--fcompiler= Specify Fortran compiler type by vendor
--compiler= Specify C compiler type (as defined by distutils)
--help-fcompiler List available Fortran compilers and exit
--f77exec= Specify the path to F77 compiler
--f90exec= Specify the path to F90 compiler
--f77flags= Specify F77 compiler flags
--f90flags= Specify F90 compiler flags
--opt= Specify optimization flags
--arch= Specify architecture specific optimization flags
--noopt Compile without optimization
--noarch Compile without arch-dependent optimization
--debug Compile with debugging information
Extra options (only effective with -c):
--link-<resource> Link extension module with <resource> as defined
by numpy.distutils/system_info.py. E.g. to link
with optimized LAPACK libraries (vecLib on MacOSX,
ATLAS elsewhere), use --link-lapack_opt.
See also --help-link switch.
-L/path/to/lib/ -l<libname>
-D<define> -U<name>
-I/path/to/include/
<filename>.o <filename>.so <filename>.a
Using the following macros may be required with non-gcc Fortran
compilers:
-DPREPEND_FORTRAN -DNO_APPEND_FORTRAN -DUPPERCASE_FORTRAN
-DUNDERSCORE_G77
When using -DF2PY_REPORT_ATEXIT, a performance report of F2PY
interface is printed out at exit (platforms: Linux).
When using -DF2PY_REPORT_ON_ARRAY_COPY=<int>, a message is
sent to stderr whenever F2PY interface makes a copy of an
array. Integer <int> sets the threshold for array sizes when
a message should be shown.
Version: %s
numpy Version: %s
Requires: Python 3.5 or higher.
License: NumPy license (see LICENSE.txt in the NumPy source code)
Copyright 1999 - 2011 Pearu Peterson all rights reserved.
http://cens.ioc.ee/projects/f2py2e/""" % (f2py_version, numpy_version)
def scaninputline(inputline):
files, skipfuncs, onlyfuncs, debug = [], [], [], []
f, f2, f3, f5, f6, f7, f8, f9, f10 = 1, 0, 0, 0, 0, 0, 0, 0, 0
verbose = 1
dolc = -1
dolatexdoc = 0
dorestdoc = 0
wrapfuncs = 1
buildpath = '.'
include_paths = []
signsfile, modulename = None, None
options = {'buildpath': buildpath,
'coutput': None,
'f2py_wrapper_output': None}
for l in inputline:
if l == '':
pass
elif l == 'only:':
f = 0
elif l == 'skip:':
f = -1
elif l == ':':
f = 1
elif l[:8] == '--debug-':
debug.append(l[8:])
elif l == '--lower':
dolc = 1
elif l == '--build-dir':
f6 = 1
elif l == '--no-lower':
dolc = 0
elif l == '--quiet':
verbose = 0
elif l == '--verbose':
verbose += 1
elif l == '--latex-doc':
dolatexdoc = 1
elif l == '--no-latex-doc':
dolatexdoc = 0
elif l == '--rest-doc':
dorestdoc = 1
elif l == '--no-rest-doc':
dorestdoc = 0
elif l == '--wrap-functions':
wrapfuncs = 1
elif l == '--no-wrap-functions':
wrapfuncs = 0
elif l == '--short-latex':
options['shortlatex'] = 1
elif l == '--coutput':
f8 = 1
elif l == '--f2py-wrapper-output':
f9 = 1
elif l == '--f2cmap':
f10 = 1
elif l == '--overwrite-signature':
options['h-overwrite'] = 1
elif l == '-h':
f2 = 1
elif l == '-m':
f3 = 1
elif l[:2] == '-v':
print(f2py_version)
sys.exit()
elif l == '--show-compilers':
f5 = 1
elif l[:8] == '-include':
cfuncs.outneeds['userincludes'].append(l[9:-1])
cfuncs.userincludes[l[9:-1]] = '#include ' + l[8:]
elif l[:15] in '--include_paths':
outmess(
'f2py option --include_paths is deprecated, use --include-paths instead.\n')
f7 = 1
elif l[:15] in '--include-paths':
f7 = 1
elif l[0] == '-':
errmess('Unknown option %s\n' % repr(l))
sys.exit()
elif f2:
f2 = 0
signsfile = l
elif f3:
f3 = 0
modulename = l
elif f6:
f6 = 0
buildpath = l
elif f7:
f7 = 0
include_paths.extend(l.split(os.pathsep))
elif f8:
f8 = 0
options["coutput"] = l
elif f9:
f9 = 0
options["f2py_wrapper_output"] = l
elif f10:
f10 = 0
options["f2cmap_file"] = l
elif f == 1:
try:
with open(l):
pass
files.append(l)
except IOError as detail:
errmess('IOError: %s. Skipping file "%s".\n' %
(str(detail), l))
elif f == -1:
skipfuncs.append(l)
elif f == 0:
onlyfuncs.append(l)
if not f5 and not files and not modulename:
print(__usage__)
sys.exit()
if not os.path.isdir(buildpath):
if not verbose:
outmess('Creating build directory %s' % (buildpath))
os.mkdir(buildpath)
if signsfile:
signsfile = os.path.join(buildpath, signsfile)
if signsfile and os.path.isfile(signsfile) and 'h-overwrite' not in options:
errmess(
'Signature file "%s" exists!!! Use --overwrite-signature to overwrite.\n' % (signsfile))
sys.exit()
options['debug'] = debug
options['verbose'] = verbose
if dolc == -1 and not signsfile:
options['do-lower'] = 0
else:
options['do-lower'] = dolc
if modulename:
options['module'] = modulename
if signsfile:
options['signsfile'] = signsfile
if onlyfuncs:
options['onlyfuncs'] = onlyfuncs
if skipfuncs:
options['skipfuncs'] = skipfuncs
options['dolatexdoc'] = dolatexdoc
options['dorestdoc'] = dorestdoc
options['wrapfuncs'] = wrapfuncs
options['buildpath'] = buildpath
options['include_paths'] = include_paths
options.setdefault('f2cmap_file', None)
return files, options
def callcrackfortran(files, options):
rules.options = options
crackfortran.debug = options['debug']
crackfortran.verbose = options['verbose']
if 'module' in options:
crackfortran.f77modulename = options['module']
if 'skipfuncs' in options:
crackfortran.skipfuncs = options['skipfuncs']
if 'onlyfuncs' in options:
crackfortran.onlyfuncs = options['onlyfuncs']
crackfortran.include_paths[:] = options['include_paths']
crackfortran.dolowercase = options['do-lower']
postlist = crackfortran.crackfortran(files)
if 'signsfile' in options:
outmess('Saving signatures to file "%s"\n' % (options['signsfile']))
pyf = crackfortran.crack2fortran(postlist)
if options['signsfile'][-6:] == 'stdout':
sys.stdout.write(pyf)
else:
with open(options['signsfile'], 'w') as f:
f.write(pyf)
if options["coutput"] is None:
for mod in postlist:
mod["coutput"] = "%smodule.c" % mod["name"]
else:
for mod in postlist:
mod["coutput"] = options["coutput"]
if options["f2py_wrapper_output"] is None:
for mod in postlist:
mod["f2py_wrapper_output"] = "%s-f2pywrappers.f" % mod["name"]
else:
for mod in postlist:
mod["f2py_wrapper_output"] = options["f2py_wrapper_output"]
return postlist
def buildmodules(lst):
cfuncs.buildcfuncs()
outmess('Building modules...\n')
modules, mnames, isusedby = [], [], {}
for i in range(len(lst)):
if '__user__' in lst[i]['name']:
cb_rules.buildcallbacks(lst[i])
else:
if 'use' in lst[i]:
for u in lst[i]['use'].keys():
if u not in isusedby:
isusedby[u] = []
isusedby[u].append(lst[i]['name'])
modules.append(lst[i])
mnames.append(lst[i]['name'])
ret = {}
for i in range(len(mnames)):
if mnames[i] in isusedby:
outmess('\tSkipping module "%s" which is used by %s.\n' % (
mnames[i], ','.join(['"%s"' % s for s in isusedby[mnames[i]]])))
else:
um = []
if 'use' in modules[i]:
for u in modules[i]['use'].keys():
if u in isusedby and u in mnames:
um.append(modules[mnames.index(u)])
else:
outmess(
'\tModule "%s" uses nonexisting "%s" which will be ignored.\n' % (mnames[i], u))
ret[mnames[i]] = {}
dict_append(ret[mnames[i]], rules.buildmodule(modules[i], um))
return ret
def dict_append(d_out, d_in):
for (k, v) in d_in.items():
if k not in d_out:
d_out[k] = []
if isinstance(v, list):
d_out[k] = d_out[k] + v
else:
d_out[k].append(v)
def run_main(comline_list):
"""
Equivalent to running::
f2py <args>
where ``<args>=string.join(<list>,' ')``, but in Python. Unless
``-h`` is used, this function returns a dictionary containing
information on generated modules and their dependencies on source
files. For example, the command ``f2py -m scalar scalar.f`` can be
executed from Python as follows
You cannot build extension modules with this function, that is,
using ``-c`` is not allowed. Use ``compile`` command instead
Examples
--------
.. include:: run_main_session.dat
:literal:
"""
crackfortran.reset_global_f2py_vars()
f2pydir = os.path.dirname(os.path.abspath(cfuncs.__file__))
fobjhsrc = os.path.join(f2pydir, 'src', 'fortranobject.h')
fobjcsrc = os.path.join(f2pydir, 'src', 'fortranobject.c')
files, options = scaninputline(comline_list)
auxfuncs.options = options
capi_maps.load_f2cmap_file(options['f2cmap_file'])
postlist = callcrackfortran(files, options)
isusedby = {}
for i in range(len(postlist)):
if 'use' in postlist[i]:
for u in postlist[i]['use'].keys():
if u not in isusedby:
isusedby[u] = []
isusedby[u].append(postlist[i]['name'])
for i in range(len(postlist)):
if postlist[i]['block'] == 'python module' and '__user__' in postlist[i]['name']:
if postlist[i]['name'] in isusedby:
# if not quiet:
outmess('Skipping Makefile build for module "%s" which is used by %s\n' % (
postlist[i]['name'], ','.join(['"%s"' % s for s in isusedby[postlist[i]['name']]])))
if 'signsfile' in options:
if options['verbose'] > 1:
outmess(
'Stopping. Edit the signature file and then run f2py on the signature file: ')
outmess('%s %s\n' %
(os.path.basename(sys.argv[0]), options['signsfile']))
return
for i in range(len(postlist)):
if postlist[i]['block'] != 'python module':
if 'python module' not in options:
errmess(
'Tip: If your original code is Fortran source then you must use -m option.\n')
raise TypeError('All blocks must be python module blocks but got %s' % (
repr(postlist[i]['block'])))
auxfuncs.debugoptions = options['debug']
f90mod_rules.options = options
auxfuncs.wrapfuncs = options['wrapfuncs']
ret = buildmodules(postlist)
for mn in ret.keys():
dict_append(ret[mn], {'csrc': fobjcsrc, 'h': fobjhsrc})
return ret
def filter_files(prefix, suffix, files, remove_prefix=None):
"""
Filter files by prefix and suffix.
"""
filtered, rest = [], []
match = re.compile(prefix + r'.*' + suffix + r'\Z').match
if remove_prefix:
ind = len(prefix)
else:
ind = 0
for file in [x.strip() for x in files]:
if match(file):
filtered.append(file[ind:])
else:
rest.append(file)
return filtered, rest
def get_prefix(module):
p = os.path.dirname(os.path.dirname(module.__file__))
return p
def run_compile():
"""
Do it all in one call!
"""
import tempfile
i = sys.argv.index('-c')
del sys.argv[i]
remove_build_dir = 0
try:
i = sys.argv.index('--build-dir')
except ValueError:
i = None
if i is not None:
build_dir = sys.argv[i + 1]
del sys.argv[i + 1]
del sys.argv[i]
else:
remove_build_dir = 1
build_dir = tempfile.mkdtemp()
_reg1 = re.compile(r'[-][-]link[-]')
sysinfo_flags = [_m for _m in sys.argv[1:] if _reg1.match(_m)]
sys.argv = [_m for _m in sys.argv if _m not in sysinfo_flags]
if sysinfo_flags:
sysinfo_flags = [f[7:] for f in sysinfo_flags]
_reg2 = re.compile(
r'[-][-]((no[-]|)(wrap[-]functions|lower)|debug[-]capi|quiet)|[-]include')
f2py_flags = [_m for _m in sys.argv[1:] if _reg2.match(_m)]
sys.argv = [_m for _m in sys.argv if _m not in f2py_flags]
f2py_flags2 = []
fl = 0
for a in sys.argv[1:]:
if a in ['only:', 'skip:']:
fl = 1
elif a == ':':
fl = 0
if fl or a == ':':
f2py_flags2.append(a)
if f2py_flags2 and f2py_flags2[-1] != ':':
f2py_flags2.append(':')
f2py_flags.extend(f2py_flags2)
sys.argv = [_m for _m in sys.argv if _m not in f2py_flags2]
_reg3 = re.compile(
r'[-][-]((f(90)?compiler([-]exec|)|compiler)=|help[-]compiler)')
flib_flags = [_m for _m in sys.argv[1:] if _reg3.match(_m)]
sys.argv = [_m for _m in sys.argv if _m not in flib_flags]
_reg4 = re.compile(
r'[-][-]((f(77|90)(flags|exec)|opt|arch)=|(debug|noopt|noarch|help[-]fcompiler))')
fc_flags = [_m for _m in sys.argv[1:] if _reg4.match(_m)]
sys.argv = [_m for _m in sys.argv if _m not in fc_flags]
if 1:
del_list = []
for s in flib_flags:
v = '--fcompiler='
if s[:len(v)] == v:
from numpy.distutils import fcompiler
fcompiler.load_all_fcompiler_classes()
allowed_keys = list(fcompiler.fcompiler_class.keys())
nv = ov = s[len(v):].lower()
if ov not in allowed_keys:
vmap = {} # XXX
try:
nv = vmap[ov]
except KeyError:
if ov not in vmap.values():
print('Unknown vendor: "%s"' % (s[len(v):]))
nv = ov
i = flib_flags.index(s)
flib_flags[i] = '--fcompiler=' + nv
continue
for s in del_list:
i = flib_flags.index(s)
del flib_flags[i]
assert len(flib_flags) <= 2, repr(flib_flags)
_reg5 = re.compile(r'[-][-](verbose)')
setup_flags = [_m for _m in sys.argv[1:] if _reg5.match(_m)]
sys.argv = [_m for _m in sys.argv if _m not in setup_flags]
if '--quiet' in f2py_flags:
setup_flags.append('--quiet')
modulename = 'untitled'
sources = sys.argv[1:]
for optname in ['--include_paths', '--include-paths', '--f2cmap']:
if optname in sys.argv:
i = sys.argv.index(optname)
f2py_flags.extend(sys.argv[i:i + 2])
del sys.argv[i + 1], sys.argv[i]
sources = sys.argv[1:]
if '-m' in sys.argv:
i = sys.argv.index('-m')
modulename = sys.argv[i + 1]
del sys.argv[i + 1], sys.argv[i]
sources = sys.argv[1:]
else:
from numpy.distutils.command.build_src import get_f2py_modulename
pyf_files, sources = filter_files('', '[.]pyf([.]src|)', sources)
sources = pyf_files + sources
for f in pyf_files:
modulename = get_f2py_modulename(f)
if modulename:
break
extra_objects, sources = filter_files('', '[.](o|a|so)', sources)
include_dirs, sources = filter_files('-I', '', sources, remove_prefix=1)
library_dirs, sources = filter_files('-L', '', sources, remove_prefix=1)
libraries, sources = filter_files('-l', '', sources, remove_prefix=1)
undef_macros, sources = filter_files('-U', '', sources, remove_prefix=1)
define_macros, sources = filter_files('-D', '', sources, remove_prefix=1)
for i in range(len(define_macros)):
name_value = define_macros[i].split('=', 1)
if len(name_value) == 1:
name_value.append(None)
if len(name_value) == 2:
define_macros[i] = tuple(name_value)
else:
print('Invalid use of -D:', name_value)
from numpy.distutils.system_info import get_info
num_info = {}
if num_info:
include_dirs.extend(num_info.get('include_dirs', []))
from numpy.distutils.core import setup, Extension
ext_args = {'name': modulename, 'sources': sources,
'include_dirs': include_dirs,
'library_dirs': library_dirs,
'libraries': libraries,
'define_macros': define_macros,
'undef_macros': undef_macros,
'extra_objects': extra_objects,
'f2py_options': f2py_flags,
}
if sysinfo_flags:
from numpy.distutils.misc_util import dict_append
for n in sysinfo_flags:
i = get_info(n)
if not i:
outmess('No %s resources found in system'
' (try `f2py --help-link`)\n' % (repr(n)))
dict_append(ext_args, **i)
ext = Extension(**ext_args)
sys.argv = [sys.argv[0]] + setup_flags
sys.argv.extend(['build',
'--build-temp', build_dir,
'--build-base', build_dir,
'--build-platlib', '.'])
if fc_flags:
sys.argv.extend(['config_fc'] + fc_flags)
if flib_flags:
sys.argv.extend(['build_ext'] + flib_flags)
setup(ext_modules=[ext])
if remove_build_dir and os.path.exists(build_dir):
import shutil
outmess('Removing build directory %s\n' % (build_dir))
shutil.rmtree(build_dir)
def main():
if '--help-link' in sys.argv[1:]:
sys.argv.remove('--help-link')
from numpy.distutils.system_info import show_all
show_all()
return
# Probably outdated options that were not working before 1.16
if '--g3-numpy' in sys.argv[1:]:
sys.stderr.write("G3 f2py support is not implemented, yet.\\n")
sys.exit(1)
elif '--2e-numeric' in sys.argv[1:]:
sys.argv.remove('--2e-numeric')
elif '--2e-numarray' in sys.argv[1:]:
# Note that this errors becaust the -DNUMARRAY argument is
# not recognized. Just here for back compatibility and the
# error message.
sys.argv.append("-DNUMARRAY")
sys.argv.remove('--2e-numarray')
elif '--2e-numpy' in sys.argv[1:]:
sys.argv.remove('--2e-numpy')
else:
pass
if '-c' in sys.argv[1:]:
run_compile()
else:
run_main(sys.argv[1:])