A first version of the obidistutils adapted to Python3
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'''
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Created on 2 oct. 2014
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@author: coissac
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'''
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import re
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import os
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import pip # @UnresolvedImport
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from pip.utils import get_installed_distributions # @UnresolvedImport
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from distutils.version import StrictVersion # @UnusedImport
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from distutils.errors import DistutilsError
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from distutils import log
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class RequirementError(Exception):
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pass
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def is_installed(requirement):
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requirement_project,requirement_relation,requirement_version = parse_package_requirement(requirement)
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package = [x for x in get_installed_distributions() if x.project_name==requirement_project]
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if len(package)==1:
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if requirement_version is not None and requirement_relation is not None:
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rep = (len(package)==1) and eval("StrictVersion('%s') %s StrictVersion('%s')" % (package[0].version,
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requirement_relation,
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requirement_version)
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)
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else:
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rep=True
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else:
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rep=False
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if rep:
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if requirement_version is not None and requirement_relation is not None:
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log.info("Look for package %s (%s%s) : ok version %s installed" % (requirement_project,
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requirement_relation,
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requirement_version,
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package[0].version))
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else:
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log.info("Look for package %s : ok version %s installed" % (requirement_project,
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package[0].version))
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else:
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if len(package)!=1:
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log.info("Look for package %s (%s%s) : not installed" % (requirement_project,
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requirement_relation,
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requirement_version))
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else:
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log.info("Look for package %s (%s%s) : failed only version %s installed" % (requirement_project,
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requirement_relation,
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requirement_version,
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package[0].version))
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return rep
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def get_requirements(requirementfile='requirements.txt'):
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try:
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requirements = open(requirementfile).readlines()
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requirements = [x.strip() for x in requirements]
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requirements = [x for x in requirements if x[0]!='-']
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except IOError:
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requirements = []
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return requirements
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def install_requirements(requirementfile='requirements.txt'):
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install_something=False
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requirements = get_requirements(requirementfile)
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log.info("Required packages for the installation :")
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for x in requirements:
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ok = is_installed(x)
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if not ok:
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log.info(" Installing requirement : %s" % x)
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pip_install_package(x)
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install_something=True
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return install_something
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def check_requirements(requirementfile='requirements.txt'):
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requirements = get_requirements(requirementfile)
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log.info("Required packages for the installation :")
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for x in requirements:
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ok = is_installed(x)
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if not ok:
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raise RequirementError(" Missing requirement : %s -- Package installation stopped" % x)
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def parse_package_requirement(requirement):
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version_pattern = re.compile('[=><]+(.*)$')
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project_pattern = re.compile('[^=><]+')
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relationship_pattern = re.compile('[=><]+')
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try:
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requirement_project = project_pattern.search(requirement).group(0)
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requirement_version = version_pattern.search(requirement)
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if requirement_version is not None:
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requirement_version=requirement_version.group(1)
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requirement_relation= relationship_pattern.search(requirement)
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if requirement_relation is not None:
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requirement_relation=requirement_relation.group(0)
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except:
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raise DistutilsError("Requirement : %s not correctly formated" % requirement)
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return requirement_project,requirement_relation,requirement_version
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def get_package_requirement(package,requirementfile='requirements.txt'):
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requirements = get_requirements(requirementfile)
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req = [x for x in requirements
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if x[0:len(package)]==package
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]
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if len(req)==1:
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return req[0]
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else:
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return None
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def pip_install_package(package,directory=None,upgrade=True):
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log.info('installing %s in directory %s' % (package,str(directory)))
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if 'http_proxy' in os.environ and 'https_proxy' not in os.environ:
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os.environ['https_proxy']=os.environ['http_proxy']
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args = ['install']
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if upgrade:
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args.append('--upgrade')
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if 'http_proxy' in os.environ:
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args.append('--proxy=%s' % os.environ['http_proxy'])
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if directory is not None:
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args.append('--target=%s' % directory)
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args.append(package)
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return pip.main(args)
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@@ -0,0 +1,79 @@
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'''
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Created on 24 mai 2015
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@author: coissac
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'''
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from distutils.version import StrictVersion
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from distutils import sysconfig
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import subprocess
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import os
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import glob
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import re
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from obidistutils.serenity.checksystem import is_windows_system
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def is_python_version(path=None,minversion='3.4',maxversion=None):
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'''
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Checks that the python version is in the range {minversion,maxversion[
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@param path: if None consider the running python
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otherwise the python pointed by the path
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@param minversion: the minimum version to consider
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@param maxversion: the maximum version to consider (strictly inferior to)
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@return: True if the python version match
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@rtype: bool
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'''
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if path is None:
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pythonversion = StrictVersion(sysconfig.get_python_version())
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else:
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command = """'%s' -c 'from distutils import sysconfig; """ \
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"""print(sysconfig.get_python_version())'""" % path
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p = subprocess.Popen(command,
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shell=True,
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stdout=subprocess.PIPE)
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pythonversion=str(p.communicate()[0],'utf8').strip()
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pythonversion = StrictVersion(pythonversion)
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return ( pythonversion >=StrictVersion(minversion)
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and ( maxversion is None
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or pythonversion < StrictVersion(maxversion))
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)
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def lookfor_good_python(minversion='3.4',maxversion=None,followLink=False):
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'''
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Look for all python interpreters present in the system path that
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match the version constraints.
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@param minversion: the minimum version to consider
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@param maxversion: the maximum version to consider (strictly inferior to)
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@param followLink: a boolean value indicating if link must be substituted
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by their real path.
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@return: a list of path to interpreters
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'''
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exe = []
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if not is_windows_system():
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paths = os.environ['PATH'].split(os.pathsep)
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for p in paths:
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candidates = glob.glob(os.path.join(p,'python*'))
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pexe = []
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pythonpat=re.compile('python([0-9]|[0-9]\.[0-9])?$')
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for e in candidates:
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print(e)
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if pythonpat.search(e) is not None:
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if followLink and os.path.islink(e):
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e = os.path.realpath(e)
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if (os.path.isfile(e) and
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os.access(e, os.X_OK) and
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is_python_version(e,minversion,maxversion)):
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pexe.append(e)
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exe.extend(set(pexe))
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return exe
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@@ -0,0 +1,18 @@
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'''
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Created on 24 mai 2015
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@author: coissac
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'''
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from distutils import util
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def is_mac_system():
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platform = util.get_platform().split('-')[0]
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return platform=='macosx'
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def is_windows_system():
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platform = util.get_platform().split('-')[0]
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return platform=='Windows'
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@@ -0,0 +1,14 @@
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'''
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Created on 24 mai 2015
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@author: coissac
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'''
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saved_args=[]
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tmpdir=[]
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local_pip=[]
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local_virtualenv=[]
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local_cython=[]
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local_serenity=[]
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@@ -0,0 +1,59 @@
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'''
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Created on 24 mai 2015
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@author: coissac
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'''
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import sys
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import os
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from distutils import log
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from distutils.errors import DistutilsError
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from obidistutils.serenity.globals import saved_args
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from obidistutils.serenity.checkpython import is_python_version,\
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lookfor_good_python
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def rerun_with_anothe_python(path, minversion='3.4',maxversion=None, fork=False):
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if saved_args:
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args = saved_args
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else:
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args = list(sys.argv)
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assert is_python_version(path,minversion,maxversion), \
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'the selected python is not adapted to the installation of this package'
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args.insert(0, path)
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sys.stderr.flush()
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sys.stdout.flush()
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if fork:
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log.info('Forking a new install process')
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os.system(' '.join(list(args)))
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log.info('External process ended')
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sys.exit(0)
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else:
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os.execv(path,list(args))
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def enforce_good_python(minversion='3.4',maxversion=None, fork=False):
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if is_python_version(minversion=minversion,maxversion=maxversion):
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return True
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goodpython = lookfor_good_python(minversion,maxversion)
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if not goodpython:
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raise DistutilsError('No good python identified on your system')
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goodpython=goodpython[0]
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log.warn("========================================")
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log.warn("")
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log.warn(" Switching to python : %s" % goodpython)
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log.warn("")
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log.warn("========================================")
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rerun_with_anothe_python(goodpython)
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@@ -0,0 +1,35 @@
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'''
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Created on 2 oct. 2014
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@author: coissac
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'''
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snake ="""
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___
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,'._,`.
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(-.___.-)
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(-.___.-)
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`-.___.-'
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(( @ @| . __
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\ ` | ,\ |`. @| | | _.-._
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__`.`=-=mm===mm:: | | |`. | | | ,'=` '=`.
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( `-'|:/ /:/ `/ @| | | |, @| @| /---)W(---\
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\ \ / / / / @| | ' (----| |----) ,~
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|\ \ / /| / / @| \---| |---/ |
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| \ V /||/ / `.-| |-,' |
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| `-' |V / \| |/ @'
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| , |-' __| |__
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| .;: _,-. ,--""..| |..""--.
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;;:::' " ) (`--::__|_|__::--')
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,-" _, / \`--...___...--'/
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( -:--'/ / /`--...___...--'\
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"-._ `"'._/ /`---...___...---'\
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"-._ "---. (`---....___....---')
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.' ",._ ,' ) |`---....___....---'|
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/`._| `| | (`---....___....---')
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( \ | / \`---...___...---'/
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`. `, ^"" `:--...___...--;'
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`.,' hh `-._______.-'
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"""
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