winpython/winpython/wppm.py at master · DylanVB/winpython · GitHub

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# -*- coding: utf-8 -*-

# Licensed under the terms of the MIT License

# (see winpython/__init__.py for details)

"""

WinPython Package Manager

Created on Fri Aug 03 14:32:26 2012

"""

from __future__ import print_function

import os

import os.path as osp

import shutil

import re

import sys

import subprocess

# Local imports

from winpython import utils

from winpython.config import DATA_PATH

from winpython.py3compat import configparser as cp

# from former wppm separate script launcher

from argparse import ArgumentParser

from winpython import py3compat

# Workaround for installing PyVISA on Windows from source:

os.environ['HOME'] = os.environ['USERPROFILE']

# pep503 defines normalized package names: www.python.org/dev/peps/pep-0503

def normalize(name):

return re.sub(r"[-_.]+", "-", name).lower()

def get_package_metadata(database, name):

"""Extract infos (description, url) from the local database"""

# Note: we could use the PyPI database but this has been written on

# machine which is not connected to the internet

db = cp.ConfigParser()

db.readfp(open(osp.join(DATA_PATH, database)))

metadata = dict(description='', url='https://pypi.python.org/pypi/' + name)

for key in metadata:

name1 = name.lower()

# wheel replace '-' per '_' in key

for name2 in (name1, name1.split('-')[0], name1.replace('-', '_'),

'-'.join(name1.split('_')), normalize(name)):

try:

metadata[key] = db.get(name2, key)

break

except (cp.NoSectionError, cp.NoOptionError):

pass

return metadata

class BasePackage(object):

def __init__(self, fname):

self.fname = fname

self.name = None

self.version = None

self.architecture = None

self.pyversion = None

self.description = None

self.url = None

def __str__(self):

text = "%s %s" % (self.name, self.version)

pytext = ""

if self.pyversion is not None:

pytext = " for Python %s" % self.pyversion

if self.architecture is not None:

if not pytext:

pytext = " for Python"

pytext += " %dbits" % self.architecture

text += "%s\n%s\nWebsite: %s\n[%s]" % (pytext, self.description,

self.url,

osp.basename(self.fname))

return text

def is_compatible_with(self, distribution):

"""Return True if package is compatible with distribution in terms of

architecture and Python version (if applyable)"""

iscomp = True

if self.architecture is not None:

# Source distributions (not yet supported though)

iscomp = iscomp and self.architecture == distribution.architecture

if self.pyversion is not None:

# Non-pure Python package

iscomp = iscomp and self.pyversion == distribution.version

return iscomp

def extract_optional_infos(self):

"""Extract package optional infos (description, url)

from the package database"""

metadata = get_package_metadata('packages.ini', self.name)

for key, value in list(metadata.items()):

setattr(self, key, value)

class Package(BasePackage):

def __init__(self, fname):

BasePackage.__init__(self, fname)

self.files = []

self.extract_infos()

self.extract_optional_infos()

def extract_infos(self):

"""Extract package infos (name, version, architecture)

from filename (installer basename)"""

bname = osp.basename(self.fname)

if bname.endswith('.exe'):

# distutils bdist_wininst

match = re.match(utils.WININST_PATTERN, bname)

if match is not None:

(self.name, self.version,

_t0, _qtver, arch, _t1, self.pyversion, _t2) = match.groups()

self.architecture = 32 if arch == 'win32' else 64

return

# NSIS

pat = r'([a-zA-Z0-9\-\_]*)-Py([0-9\.]*)-x(64|32)-gpl-([0-9\.\-]*[a-z]*)\.exe'

match = re.match(pat, bname)

if match is not None:

self.name, self.pyversion, arch, self.version = match.groups()

self.architecture = int(arch)

return

# NSIS complement to match PyQt4-4.10.4-gpl-Py3.4-Qt4.8.6-x32.exe

pat = r'([a-zA-Z0-9\_]*)-([0-9\.]*[a-z]*)-gpl-Py([0-9\.]*)-.*-x(64|32)\.exe'

match = re.match(pat, bname)

if match is not None:

self.name, self.version, self.pyversion, arch = match.groups()

self.architecture = int(arch)

return

match = re.match(r'([a-zA-Z0-9\-\_]*)-([0-9\.]*[a-z]*)-py([0-9\.]*)-x(64|32)-([a-z0-9\.\-]*).exe', bname)

if match is not None:

self.name, self.version, self.pyversion, arch, _pyqt = match.groups()

self.architecture = int(arch)

return

# New : Binary wheel case

elif bname.endswith(('32.whl', '64.whl')):

# {name}[-{bloat}]-{version}-{python tag}-{abi tag}-{platform tag}.whl

# ['sounddevice','0.3.5','py2.py3.cp34.cp35','none','win32']

# PyQt5-5.7.1-5.7.1-cp34.cp35.cp36-none-win_amd64.whl

bname2 = bname[:-4].split("-")

self.name = bname2[0]

self.version = '-'.join(list(bname2[1:-3]))

self.pywheel, abi, arch = bname2[-3:]

self.pyversion = None # Let's ignore this self.pywheel

# wheel arch is 'win32' or 'win_amd64'

self.architecture = 32 if arch == 'win32' else 64

return

elif bname.endswith(('.zip', '.tar.gz', '.whl')):

# distutils sdist

infos = utils.get_source_package_infos(bname)

if infos is not None:

self.name, self.version = infos

return

raise NotImplementedError("Not supported package type %s" % bname)

def logpath(self, logdir):

"""Return full log path"""

return osp.join(logdir, osp.basename(self.fname+'.log'))

def save_log(self, logdir):

"""Save log (pickle)"""

header = ['# WPPM package installation log',

'# ',

'# Package: %s v%s' % (self.name, self.version),

'']

open(self.logpath(logdir), 'w').write('\n'.join(header + self.files))

def load_log(self, logdir):

"""Load log (pickle)"""

try:

data = open(self.logpath(logdir), 'U').readlines()

except (IOError, OSError):

data = [] # it can be now ()

self.files = []

for line in data:

relpath = line.strip()

if relpath.startswith('#') or len(relpath) == 0:

continue

self.files.append(relpath)

def remove_log(self, logdir):

"""Remove log (after uninstalling package)"""

try:

os.remove(self.logpath(logdir))

except WindowsError:

pass

class WininstPackage(BasePackage):

def __init__(self, fname, distribution):

BasePackage.__init__(self, fname)

self.logname = None

self.distribution = distribution

self.architecture = distribution.architecture

self.pyversion = distribution.version

self.extract_infos()

self.extract_optional_infos()

def extract_infos(self):

"""Extract package infos (name, version, architecture)"""

match = re.match(r'Remove([a-zA-Z0-9\-\_\.]*)\.exe', self.fname)

if match is None:

return

self.name = match.groups()[0]

self.logname = '%s-wininst.log' % self.name

fd = open(osp.join(self.distribution.target, self.logname), 'U')

searchtxt = 'DisplayName='

for line in fd.readlines():

pos = line.find(searchtxt)

if pos != -1:

break

else:

return

fd.close()

match = re.match(r'Python %s %s-([0-9\.]*)'

% (self.pyversion, self.name),

line[pos+len(searchtxt):])

if match is None:

return

self.version = match.groups()[0]

def uninstall(self):

"""Uninstall package"""

subprocess.call([self.fname, '-u', self.logname],

cwd=self.distribution.target)

class Distribution(object):

# PyQt module is now like :PyQt4-...

NSIS_PACKAGES = ('PyQt4', 'PyQwt', 'PyQt5') # known NSIS packages

def __init__(self, target=None, verbose=False, indent=False):

self.target = target

self.verbose = verbose

self.indent = indent

self.logdir = None

# if no target path given, take the current python interpreter one

if self.target is None:

self.target = os.path.dirname(sys.executable)

self.init_log_dir()

self.to_be_removed = [] # list of directories to be removed later

self.version, self.architecture = utils.get_python_infos(target)

def clean_up(self):

"""Remove directories which couldn't be removed when building"""

for path in self.to_be_removed:

try:

shutil.rmtree(path, onerror=utils.onerror)

except WindowsError:

print("Directory %s could not be removed" % path,

file=sys.stderr)

def remove_directory(self, path):

"""Try to remove directory -- on WindowsError, remove it later"""

try:

shutil.rmtree(path)

except WindowsError:

self.to_be_removed.append(path)

def init_log_dir(self):

"""Init log path"""

path = osp.join(self.target, 'Logs')

if not osp.exists(path):

os.mkdir(path)

self.logdir = path

def copy_files(self, package, targetdir,

srcdir, dstdir, create_bat_files=False):

"""Add copy task"""

srcdir = osp.join(targetdir, srcdir)

if not osp.isdir(srcdir):

return

offset = len(srcdir)+len(os.pathsep)

for dirpath, dirnames, filenames in os.walk(srcdir):

for dname in dirnames:

t_dname = osp.join(dirpath, dname)[offset:]

src = osp.join(srcdir, t_dname)

dst = osp.join(dstdir, t_dname)

if self.verbose:

print("mkdir: %s" % dst)

full_dst = osp.join(self.target, dst)

if not osp.exists(full_dst):

os.mkdir(full_dst)

package.files.append(dst)

for fname in filenames:

t_fname = osp.join(dirpath, fname)[offset:]

src = osp.join(srcdir, t_fname)

if dirpath.endswith('_system32'):

# Files that should be copied in %WINDIR%\system32

dst = fname

else:

dst = osp.join(dstdir, t_fname)

if self.verbose:

print("file: %s" % dst)

full_dst = osp.join(self.target, dst)

shutil.move(src, full_dst)

package.files.append(dst)

name, ext = osp.splitext(dst)

if create_bat_files and ext in ('', '.py'):

dst = name + '.bat'

if self.verbose:

print("file: %s" % dst)

full_dst = osp.join(self.target, dst)

fd = open(full_dst, 'w')

fd.write("""@echo off

python "%~dpn0""" + ext + """" %*""")

fd.close()

package.files.append(dst)

def create_file(self, package, name, dstdir, contents):

"""Generate data file -- path is relative to distribution root dir"""

dst = osp.join(dstdir, name)

if self.verbose:

print("create: %s" % dst)

full_dst = osp.join(self.target, dst)

open(full_dst, 'w').write(contents)

package.files.append(dst)

def get_installed_packages(self):

"""Return installed packages"""

# Packages installed with WPPM

wppm = [Package(logname[:-4]) for logname in os.listdir(self.logdir)

if '.whl.log' not in logname ]

# Packages installed with distutils wininst

wininst = []

for name in os.listdir(self.target):

if name.startswith('Remove') and name.endswith('.exe'):

try:

pack = WininstPackage(name, self)

except IOError:

continue

if pack.name is not None and pack.version is not None:

wininst.append(pack)

# Include package installed via pip (not via WPPM)

try:

if os.path.dirname(sys.executable) == self.target:

# direct way: we interrogate ourself, using official API

import pkg_resources, imp

imp.reload(pkg_resources)

pip_list = [(i.key, i.version)

for i in pkg_resources.working_set]

else:

# indirect way: we interrogate something else

cmdx=[osp.join(self.target, 'python.exe'), '-c',

"import pip;print('+!+'.join(['%s@+@%s@+@' % (i.key,i.version) for i in pip.get_installed_distributions()]))"]

p = subprocess.Popen(cmdx, shell=True, stdout=subprocess.PIPE,

cwd=self.target)

stdout, stderr = p.communicate()

start_at = 2 if sys.version_info >= (3,0) else 0

pip_list = [line.split("@+@")[:2] for line in

("%s" % stdout)[start_at:].split("+!+")]

# create pip package list

wppip = [Package('%s-%s-py2.py3-none-any.whl' %

(i[0].replace('-', '_').lower(), i[1])) for i in pip_list]

# pip package version is supposed better

already = set(b.name.replace('-', '_') for b in wppip+wininst)

wppm = wppip + [i for i in wppm

if i.name.replace('-', '_').lower() not in already]

except:

pass

return sorted(wppm + wininst, key=lambda tup: tup.name.lower())

def find_package(self, name):

"""Find installed package"""

for pack in self.get_installed_packages():

if normalize(pack.name) == normalize(name):

return pack

def uninstall_existing(self, package):

"""Uninstall existing package (or package name)"""

if isinstance(package ,str):

pack = self.find_package(package)

else:

pack = self.find_package(package.name)

if pack is not None:

self.uninstall(pack)

def patch_all_shebang(self, to_movable=True, max_exe_size=999999, targetdir=""):

"""make all python launchers relatives"""

import glob

import os

for ffname in glob.glob(r'%s\Scripts\*.exe' % self.target):

size = os.path.getsize(ffname)

if size <= max_exe_size:

utils.patch_shebang_line(ffname, to_movable=to_movable,

targetdir=targetdir)

for ffname in glob.glob(r'%s\Scripts\*.py' % self.target):

utils.patch_shebang_line_py(ffname, to_movable=to_movable,

targetdir=targetdir)

def install(self, package, install_options=None):

"""Install package in distribution"""

assert package.is_compatible_with(self)

tmp_fname = None

# wheel addition

if package.fname.endswith(('.whl', '.tar.gz', '.zip')):

self.install_bdist_direct(package, install_options=install_options)

bname = osp.basename(package.fname)

if bname.endswith('.exe'):

if re.match(r'(' + ('|'.join(self.NSIS_PACKAGES)) + r')-', bname):

self.install_nsis_package(package)

else:

self.install_bdist_wininst(package)

elif bname.endswith('.msi'):

self.install_bdist_msi(package)

self.handle_specific_packages(package)

# minimal post-install actions

self.patch_standard_packages(package.name)

if not package.fname.endswith(('.whl', '.tar.gz', '.zip')):

package.save_log(self.logdir)

if tmp_fname is not None:

os.remove(tmp_fname)

def do_pip_action(self, actions=None, install_options=None):

"""Do pip action in a distribution"""

my_list = install_options

if my_list is None:

my_list = []

my_actions = actions

if my_actions is None:

my_actions = []

executing = osp.join(self.target, '..', 'scripts', 'env.bat')

if osp.isfile(executing):

complement = [r'&&' , 'cd' , '/D', self.target,

r'&&', osp.join(self.target, 'python.exe') ]

complement += [ '-m', 'pip']

else:

executing = osp.join(self.target, 'python.exe')

complement = [ '-m', 'pip']

try:

fname = utils.do_script(this_script=None,

python_exe=executing,

architecture=self.architecture, verbose=self.verbose,

install_options=complement + my_actions + my_list)

except RuntimeError:

if not self.verbose:

print("Failed!")

raise

def patch_standard_packages(self, package_name='', to_movable=True):

"""patch Winpython packages in need"""

import filecmp

# 'pywin32' minimal post-install (pywin32_postinstall.py do too much)

if package_name.lower() == "pywin32" or package_name == '':

origin = self.target + (r"\Lib\site-packages\pywin32_system32")

destin = self.target

if osp.isdir(origin):

for name in os.listdir(origin):

here, there = osp.join(origin, name), osp.join(destin, name)

if (not os.path.exists(there) or

not filecmp.cmp(here, there)):

shutil.copyfile(here, there)

# 'pip' to do movable launchers (around line 100) !!!!

# rational: https://github.com/pypa/pip/issues/2328

if package_name.lower() == "pip" or package_name == '':

# ensure pip will create movable launchers

# sheb_mov1 = classic way up to WinPython 2016-01

# sheb_mov2 = tried way, but doesn't work for pip (at least)

sheb_fix = " executable = get_executable()"

sheb_mov1 = " executable = os.path.join(os.path.basename(get_executable()))"

sheb_mov2 = " executable = os.path.join('..',os.path.basename(get_executable()))"

if to_movable:

utils.patch_sourcefile(self.target +

r"\Lib\site-packages\pip\_vendor\distlib\scripts.py",

sheb_fix, sheb_mov1)

utils.patch_sourcefile(self.target +

r"\Lib\site-packages\pip\_vendor\distlib\scripts.py",

sheb_mov2, sheb_mov1)

else:

utils.patch_sourcefile(self.target +

r"\Lib\site-packages\pip\_vendor\distlib\scripts.py",

sheb_mov1, sheb_fix)

utils.patch_sourcefile(self.target +

r"\Lib\site-packages\pip\_vendor\distlib\scripts.py",

sheb_mov2, sheb_fix)

# ensure pip wheel will register relative PATH in 'RECORD' files

# will be in standard pip 8.0.3

utils.patch_sourcefile(

self.target + (

r"\Lib\site-packages\pip\wheel.py"),

" writer.writerow((f, h, l))",

" writer.writerow((normpath(f, lib_dir), h, l))")

# create movable launchers for previous package installations

self.patch_all_shebang(to_movable=to_movable)

if package_name.lower() == "spyder" or package_name == '':

# spyder don't goes on internet without I ask

utils.patch_sourcefile(

self.target + (

r"\Lib\site-packages\spyderlib\config\main.py"),

"'check_updates_on_startup': True,",

"'check_updates_on_startup': False,")

utils.patch_sourcefile(

self.target + (

r"\Lib\site-packages\spyder\config\main.py"),

"'check_updates_on_startup': True,",

"'check_updates_on_startup': False,")

# workaround bad installers

if package_name.lower() == "numba":

self.create_pybat(['numba', 'pycc'])

else:

self.create_pybat(package_name.lower())

def create_pybat(self, names='', contents=r"""@echo off

..\python "%~dpn0" %*"""):

"""Create launcher batch script when missing"""

scriptpy = osp.join(self.target, 'Scripts') # std Scripts of python

if not list(names) == names:

my_list = [f for f in os.listdir(scriptpy) if '.' not in f

and f.startswith(names)]

else:

my_list = names

for name in my_list:

if osp.isdir(scriptpy) and osp.isfile(osp.join(scriptpy, name)):

if (not osp.isfile(osp.join(scriptpy, name + '.exe')) and

not osp.isfile(osp.join(scriptpy, name + '.bat'))):

fd = open(osp.join(scriptpy, name + '.bat'), 'w')

fd.write(contents)

fd.close()

def handle_specific_packages(self, package):

"""Packages requiring additional configuration"""

if package.name.lower() in ('pyqt4', 'pyqt5'):

# Qt configuration file (where to find Qt)

name = 'qt.conf'

contents = """[Paths]

Prefix = .

Binaries = ."""

self.create_file(package, name,

osp.join('Lib', 'site-packages', package.name),

contents)

self.create_file(package, name, '.',

contents.replace('.', './Lib/site-packages/%s' % package.name))

# pyuic script

if package.name.lower() == 'pyqt5':

# see http://code.activestate.com/lists/python-list/666469/

tmp_string = r'''@echo off

if "%WINPYDIR%"=="" call "%~dp0..\..\scripts\env.bat"

"%WINPYDIR%\python.exe" -m PyQt5.uic.pyuic %1 %2 %3 %4 %5 %6 %7 %8 %9'''

else:

tmp_string = r'''@echo off

if "%WINPYDIR%"=="" call "%~dp0..\..\scripts\env.bat"

"%WINPYDIR%\python.exe" "%WINPYDIR%\Lib\site-packages\package.name\uic\pyuic.py" %1 %2 %3 %4 %5 %6 %7 %8 %9'''

self.create_file(package, 'pyuic%s.bat' % package.name[-1],

'Scripts', tmp_string.replace('package.name', package.name))

# Adding missing __init__.py files (fixes Issue 8)

uic_path = osp.join('Lib', 'site-packages', package.name, 'uic')

for dirname in ('Loader', 'port_v2', 'port_v3'):

self.create_file(package, '__init__.py',

osp.join(uic_path, dirname), '')

def _print(self, package, action):

"""Print package-related action text (e.g. 'Installing')

indicating progress"""

text = " ".join([action, package.name, package.version])

if self.verbose:

utils.print_box(text)

else:

if self.indent:

text = (' '*4) + text

print(text + '...', end=" ")

def _print_done(self):

"""Print OK at the end of a process"""

if not self.verbose:

print("OK")

def uninstall(self, package):

"""Uninstall package from distribution"""

self._print(package, "Uninstalling")

if isinstance(package, WininstPackage):

package.uninstall()

package.remove_log(self.logdir)

elif not package.name == 'pip':

# trick to get true target (if not current)

this_executable_path = os.path.dirname(self.logdir)

subprocess.call([this_executable_path + r'\python.exe',

'-m', 'pip', 'uninstall', package.name, '-y'],

cwd=this_executable_path)

# legacy, if some package installed by old non-pip means

package.load_log(self.logdir)

for fname in reversed(package.files):

path = osp.join(self.target, fname)

if osp.isfile(path):

if self.verbose:

print("remove: %s" % fname)

os.remove(path)

if fname.endswith('.py'):

for suffix in ('c', 'o'):

if osp.exists(path+suffix):

if self.verbose:

print("remove: %s" % (fname+suffix))

os.remove(path+suffix)

elif osp.isdir(path):

if self.verbose:

print("rmdir: %s" % fname)

pycache = osp.join(path, '__pycache__')

if osp.exists(pycache):

try:

shutil.rmtree(pycache, onerror=utils.onerror)

if self.verbose:

print("rmtree: %s" % pycache)

except WindowsError:

print("Directory %s could not be removed"

% pycache, file=sys.stderr)

try:

os.rmdir(path)

except OSError:

if self.verbose:

print("unable to remove directory: %s" % fname,

file=sys.stderr)

else:

if self.verbose:

print("file not found: %s" % fname, file=sys.stderr)

package.remove_log(self.logdir)

self._print_done()

def install_bdist_wininst(self, package):

"""Install a distutils package built with the bdist_wininst option

(binary distribution, .exe file)"""

self._print(package, "Extracting")

targetdir = utils.extract_archive(package.fname)

self._print_done()

self._print(package, "Installing %s from " % targetdir)

self.copy_files(package, targetdir, 'PURELIB',

osp.join('Lib', 'site-packages'))

self.copy_files(package, targetdir, 'PLATLIB',

osp.join('Lib', 'site-packages'))

self.copy_files(package, targetdir, 'SCRIPTS', 'Scripts',

create_bat_files=True)

self.copy_files(package, targetdir, 'DLLs', 'DLLs')

self.copy_files(package, targetdir, 'DATA', '.')

self._print_done()

def install_bdist_direct(self, package, install_options=None):

"""Install a package directly !"""

self._print(package, "Installing %s" % package.fname.split(".")[-1])

# targetdir = utils.extract_msi(package.fname, targetdir=self.target)

try:

fname = utils.direct_pip_install(package.fname,

python_exe=osp.join(self.target, 'python.exe'),

architecture=self.architecture, verbose=self.verbose,

install_options=install_options)

except RuntimeError:

if not self.verbose:

print("Failed!")

raise

package = Package(fname)

self._print_done()

def install_script(self, script, install_options=None):

try:

fname = utils.do_script(script,

python_exe=osp.join(self.target, 'python.exe'),

architecture=self.architecture, verbose=self.verbose,

install_options=install_options)

except RuntimeError:

if not self.verbose:

print("Failed!")

raise

def install_bdist_msi(self, package):

"""Install a distutils package built with the bdist_msi option

(binary distribution, .msi file)"""

raise NotImplementedError

# self._print(package, "Extracting")

# targetdir = utils.extract_msi(package.fname, targetdir=self.target)

# self._print_done()

def install_nsis_package(self, package):

"""Install a Python package built with NSIS (e.g. PyQt or PyQwt)

(binary distribution, .exe file)"""

bname = osp.basename(package.fname)

assert bname.startswith(self.NSIS_PACKAGES)

self._print(package, "Extracting")

targetdir = utils.extract_exe(package.fname)

self._print_done()

self._print(package, "Installing")

self.copy_files(package, targetdir, 'Lib', 'Lib')

if bname.startswith('PyQt5'):

# PyQt5

outdir = osp.join('Lib', 'site-packages', 'PyQt5')

elif bname.startswith('PyQt'):

# PyQt4

outdir = osp.join('Lib', 'site-packages', 'PyQt4')

else:

# Qwt5

outdir = osp.join('Lib', 'site-packages', 'PyQt4', 'Qwt5')

self.copy_files(package, targetdir, '$_OUTDIR', outdir)

self._print_done()

def main(test=False):

if test:

sbdir = osp.join(osp.dirname(__file__),

os.pardir, os.pardir, os.pardir, 'sandbox')

tmpdir = osp.join(sbdir, 'tobedeleted')

# fname = osp.join(tmpdir, 'scipy-0.10.1.win-amd64-py2.7.exe')

fname = osp.join(sbdir, 'VTK-5.10.0-Qt-4.7.4.win32-py2.7.exe')

print(Package(fname))

sys.exit()

target = osp.join(utils.BASE_DIR, 'build',

'winpython-2.7.3', 'python-2.7.3')

fname = osp.join(utils.BASE_DIR, 'packages.src', 'docutils-0.9.1.tar.gz')

dist = Distribution(target, verbose=True)

pack = Package(fname)

print(pack.description)

# dist.install(pack)

# dist.uninstall(pack)

else:

parser = ArgumentParser(description="WinPython Package Manager: install, "\

"uninstall or upgrade Python packages on a Windows "\

"Python distribution like WinPython.")

parser.add_argument('fname', metavar='package',

type=str if py3compat.PY3 else unicode,

help='path to a Python package')

parser.add_argument('-t', '--target', dest='target', default=sys.prefix,

help='path to target Python distribution '\

'(default: "%s")' % sys.prefix)

parser.add_argument('-i', '--install', dest='install',

action='store_const', const=True, default=False,

help='install package (this is the default action)')

parser.add_argument('-u', '--uninstall', dest='uninstall',

action='store_const', const=True, default=False,

help='uninstall package')

args = parser.parse_args()

if args.install and args.uninstall:

raise RuntimeError("Incompatible arguments: --install and --uninstall")

if not args.install and not args.uninstall:

args.install = True

if not osp.isfile(args.fname) and args.install:

raise IOError("File not found: %s" % args.fname)

if utils.is_python_distribution(args.target):

dist = Distribution(args.target)

try:

if args.uninstall:

package = dist.find_package(args.fname)

dist.uninstall(package)

else:

package = Package(args.fname)

if args.install and package.is_compatible_with(dist):

dist.install(package)

else:

raise RuntimeError("Package is not compatible with Python "\

"%s %dbit" % (dist.version, dist.architecture))

except NotImplementedError:

raise RuntimeError("Package is not (yet) supported by WPPM")

else:

raise WindowsError("Invalid Python distribution %s" % args.target)

if __name__ == '__main__':

main()

winpython/winpython/wppm.py at master · DylanVB/winpython · GitHub

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