/usr/lib/python2.7/dist-packages/libtiff/utils.py is in python-libtiff 0.4.1~20150805-1.
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# Created: June 2010
from __future__ import division
__all__ = ['bytes2str', 'isindisk']
import os
import optparse
VERBOSE = False
def isindisk(path):
""" Return True if path is stored in a local disk.
"""
return os.major(os.stat(path).st_dev) in [3, # HD
8, # SCSI
]
def bytes2str(bytes):
l = []
Pbytes = bytes//1024**5
if Pbytes:
l.append('%sPi' % (Pbytes))
bytes = bytes - 1024**5 * Pbytes
Tbytes = bytes//1024**4
if Tbytes:
l.append('%sTi' % (Tbytes))
bytes = bytes - 1024**4 * Tbytes
Gbytes = bytes//1024**3
if Gbytes:
l.append('%sGi' % (Gbytes))
bytes = bytes - 1024**3 * Gbytes
Mbytes = bytes//1024**2
if Mbytes:
l.append('%sMi' % (Mbytes))
bytes = bytes - 1024**2 * Mbytes
kbytes = bytes//1024
if kbytes:
l.append('%sKi' % (kbytes))
bytes = bytes - 1024*kbytes
if bytes: l.append('%s' % (bytes))
if not l: return '0 bytes'
return '+'.join(l) + ' bytes'
class Options(optparse.Values):
"""Holds option keys and values.
Examples
--------
>>> from iocbio.utils import Options
>>> options = Options(a='abc', n=4)
>>> print options
{'a': 'abc', 'n': 4}
>>> options.get(n=5)
4
>>> options.get(m=5)
5
>>> print options
{'a': 'abc', 'm': 5, 'n': 4}
>>> options2 = Options(options)
>>> options.get(k = 6)
>>> print options2 # note that updating options will update also options2
{'a': 'abc', 'm': 5, 'n': 4, 'k': 6}
See also
--------
__init__
"""
def __init__(self, *args, **kws):
"""Construct Options instance.
The following constructions are supported:
+ construct Options instance from keyword arguments::
Options(key1 = value1, key2 = value2, ...)
+ construct Options instance from :pythonlib:`optparse`.Values
instance and override with keyword arguments::
Options(<Values instance>, key1 = value1, ...)
+ construct Options instance from Options instance::
Options(<Options instance>, key1 = value1, ...)
Note that both Options instances will share options data.
See also
--------
Options
"""
if len(args)==0:
optparse.Values.__init__(self, kws)
elif len (args)==1:
arg = args[0]
if isinstance(arg, Options):
self.__dict__ = arg.__dict__
self.__dict__.update(**kws)
elif isinstance(arg, optparse.Values):
optparse.Values.__init__(self, arg.__dict__)
self.__dict__.update(**kws)
elif isinstance(arg, type (None)):
optparse.Values.__init__(self, kws)
else:
raise NotImplementedError(`arg`)
else:
raise NotImplementedError(`args`)
def get(self, **kws):
"""Return option value.
For example, ``options.get(key = default_value)`` will return
the value of an option with ``key``. If such an option does
not exist then update ``options`` and return
``default_value``.
Parameters
----------
key = default_value
Specify option key and its default value.
Returns
-------
value
Value of the option.
See also
--------
Options
"""
assert len (kws)==1,`kws`
key, default = kws.items()[0]
if key not in self.__dict__:
if VERBOSE:
print 'Options.get: adding new option: %s=%r' % (key, default)
self.__dict__[key] = default
value = self.__dict__[key]
if value is None:
value = self.__dict__[key] = default
return value
def splitcommandline(line):
items, stopchar = splitquote (line)
result = []
for item in items:
if item[0]==item[-1] and item[0] in '\'"':
result.append (item[1:-1])
else:
result.extend (item.split())
return result
def splitquote(line, stopchar=None, lower=False, quotechars = '"\''):
"""
Fast LineSplitter.
Copied from The F2Py Project.
"""
items = []
i = 0
while 1:
try:
char = line[i]; i += 1
except IndexError:
break
l = []
l_append = l.append
nofslashes = 0
if stopchar is None:
# search for string start
while 1:
if char in quotechars and not nofslashes % 2:
stopchar = char
i -= 1
break
if char=='\\':
nofslashes += 1
else:
nofslashes = 0
l_append(char)
try:
char = line[i]; i += 1
except IndexError:
break
if not l: continue
item = ''.join(l)
if lower: item = item.lower()
items.append(item)
continue
if char==stopchar:
# string starts with quotechar
l_append(char)
try:
char = line[i]; i += 1
except IndexError:
if l:
item = str(''.join(l))
items.append(item)
break
# else continued string
while 1:
if char==stopchar and not nofslashes % 2:
l_append(char)
stopchar = None
break
if char=='\\':
nofslashes += 1
else:
nofslashes = 0
l_append(char)
try:
char = line[i]; i += 1
except IndexError:
break
if l:
item = str(''.join(l))
items.append(item)
return items, stopchar
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