9 examples of 'how to set path in python' in Python

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def set_path_env_variable():
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    DEFAULT_PATH_ENV = "/usr/local/bin:/usr/bin/:/bin"
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    if os.environ.get('PATH') is None or os.environ["PATH"] == DEFAULT_PATH_ENV:
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        os.environ["PATH"] = ":".join(["/var/lang/bin", DEFAULT_PATH_ENV])

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def configure_python_path(opts):
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    if not opts['--exclude-working-directory']:
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        sys.path.insert(0, os.getcwd())

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def _add_to_python_path(p):
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    if p not in sys.path: sys.path.append(p)

15
def set_local_path():
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    """ Prepend local directory to sys.path.
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    The caller is responsible for removing this path by using
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      restore_path()
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    """
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    f = sys._getframe(1)
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    if f.f_locals['__name__']=='__main__':
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        testfile = sys.argv[0]
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    else:
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        testfile = f.f_locals['__file__']
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    local_path = os.path.normpath(os.path.dirname(os.path.abspath(testfile)))
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    sys.path.insert(0,local_path)
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    return

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def patch_sys_path():
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    """
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    Add self sources to sys.path, so that directly using this script
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    from the sources works
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    """
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    this_dir = os.path.dirname(__file__)
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    to_add =  os.path.join(this_dir, "../python/")
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    to_add = os.path.abspath(to_add)
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    sys.path.insert(0, to_add)

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def addSysPythonPath():
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	import appinfo
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	import os
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	def addpath(p):
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		try:
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			p = os.path.normpath(p)
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			p = os.path.abspath(p)
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		except OSError: return
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		if not os.path.exists(p): return
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		if p not in sys.path: sys.path += [p]
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	paths = os.environ.get("PYTHONPATH", "").split(":")
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	for p in paths:
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		addpath(p.strip())
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	versionStr = ".".join(map(str, sys.version_info[0:2]))
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	if sys.platform == "darwin":
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		addpath("/usr/local/Frameworks/Python.framework/Versions/%s/lib/python%s/lib-dynload/" % (versionStr, versionStr))
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		addpath("/System/Frameworks/Python.framework/Versions/%s/lib/python%s/lib-dynload/" % (versionStr, versionStr))
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	# This will add other custom paths, e.g. for eggs.
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	import site
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	site.main()
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	def addsitedir(d):
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		try:
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			d = os.path.normpath(d)
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			d = os.path.abspath(d)
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		except OSError: return
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		if os.path.exists(d):
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			site.addsitedir(d)
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	# We still might miss some site-dirs.
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	addsitedir("/usr/local/lib/python%s/site-packages" % versionStr)
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	addsitedir("/usr/lib/python%s/site-packages" % versionStr)
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	if sys.platform == "darwin":
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		addsitedir("/Library/Python/%s/site-packages" % versionStr)
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	if not appinfo.args.forkExecProc:
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		print("Python paths after: %r" % sys.path)

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def setup_module(module):
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    sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))

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@staticmethod
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def setPath(path):
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	"""
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	:type path: basestring
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	"""
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	if not(isinstance(path, basestring)):
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		raise TypeError
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	if not os.path.exists(path) and os.path.isdir(path):
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		raise Exception("The provided path does not exist")
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	AppVars.applicationPath = path

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def fix_paths():
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    import site
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    if not hasattr(site, "USER_BASE"): return  # We are running py2app
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    if os.path.basename(__file__) != 'run.py': return  # Not running from source
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    # Fix import path: add parent directory(so that we can
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    # import vistrails.[gui|...] and remove other paths below it (we might have
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    # been started from a subdir)
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    # A better solution is probably to move run.py up a
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    # directory in the repo
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    old_dir = os.path.realpath(os.path.dirname(__file__))
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    vistrails_dir = os.path.realpath(os.path.join(os.path.dirname(__file__), '..'))
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    i = 0
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    while i < len(sys.path):
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        rpath = os.path.realpath(sys.path[i])
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        if rpath.startswith(old_dir):
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            del sys.path[i]
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        else:
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            i += 1
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    if vistrails_dir not in sys.path:
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        sys.path.insert(0, vistrails_dir)