def test_fileno(self):
t1 = self.writeTmp("A\nB")
t2 = self.writeTmp("C\nD")
fi = FileInput(files=(t1, t2))
self.assertEqual(fi.fileno(), -1)
line = next(fi)
self.assertNotEqual(fi.fileno(), -1)
fi.nextfile()
self.assertEqual(fi.fileno(), -1)
line = list(fi)
self.assertEqual(fi.fileno(), -1)
def test_fileno(self):
try:
t1 = writeTmp(1, ["A\nB"])
t2 = writeTmp(2, ["C\nD"])
fi = FileInput(files=(t1, t2))
self.assertEqual(fi.fileno(), -1)
line = fi.next()
self.assertNotEqual(fi.fileno(), -1)
fi.nextfile()
self.assertEqual(fi.fileno(), -1)
line = list(fi)
self.assertEqual(fi.fileno(), -1)
finally:
remove_tempfiles(t1, t2)
def test_fileno(self):
t1 = t2 = None
try:
t1 = writeTmp(1, ["A\nB"])
t2 = writeTmp(2, ["C\nD"])
fi = FileInput(files=(t1, t2))
self.assertEqual(fi.fileno(), -1)
line = next(fi)
self.assertNotEqual(fi.fileno(), -1)
fi.nextfile()
self.assertEqual(fi.fileno(), -1)
line = list(fi)
self.assertEqual(fi.fileno(), -1)
finally:
remove_tempfiles(t1, t2)
encoding = sys.getfilesystemencoding()
if encoding is None:
encoding = 'ascii'
fi = FileInput(files=unicode(t1, encoding))
lines = list(fi)
verify(lines == ["A\n", "B"])
finally:
remove_tempfiles(t1)
if verbose:
print "16. fileno()"
try:
t1 = writeTmp(1, ["A\nB"])
t2 = writeTmp(2, ["C\nD"])
fi = FileInput(files=(t1, t2))
verify(fi.fileno() == -1)
line = fi.next()
verify(fi.fileno() != -1)
fi.nextfile()
verify(fi.fileno() == -1)
line = list(fi)
verify(fi.fileno() == -1)
finally:
remove_tempfiles(t1, t2)
if verbose:
print "17. Specify opening mode"
try:
# invalid mode, should raise ValueError
fi = FileInput(mode="w")
raise TestFailed("FileInput should reject invalid mode argument")
class ManyFile(object):
"""A generalized version of file input that allows for stopping
reading the current file and switching to a different file.
Reading the old file is resumed once the current file is complete.
Useful for #include or similiar constructs.
"""
def __init__(self, files=None, hook=None):
self.fi = [
] # an array of file input objects. We push and pop onto this so we can resume.
self.files = [] # an array of files that need to be read later.
self.hook = None
self.current = None # the current file input object.
self.line = 0
if files is not None:
self.current = FileInput(files, openhook=self.hook)
def include(self, files):
if self.current is not None:
self.fi.push(self.current)
self.current = FileInput(files, openhook=self.hook)
def fileno(self):
if self.current is None:
return None
return self.current.fileno()
def filename(self):
if self.current is None:
return None
return self.current.filename()
def lineno(self):
return self.line
def filelineno(self):
if self.current is None:
return None
return self.current.filelineno()
def isfirstline(self):
if self.current is None:
return None
return self.current.isfirstline()
def isstdin(self):
return False
def nextfile(self):
if self.current is not None:
self.current.nextfile()
def close(self):
if self.current:
self.current.close()
self.fi = []
self.files = []
def readline(self):
if self.current is not None:
l = self.current.readline()
if len(l) > 0:
self.line = self.line + 1
return l
# Advance to the next file
if len(self.fi) > 0:
self.current = self.fi.pop()
return self.readline()
# see if there are any files left to open
if len(self.files) > 0:
self.current = FileInput(self.files,
openhook=fileinput.hook_compressed)
self.files = []
return self.readline()
return ""
def __getimem__(self):
return self.readline()
def __iter__(self):
return self
def next(self):
l = self.__getimem__()
if l != '':
return l
raise StopIteration
class ManyFile(object):
"""A generalized version of file input that allows for stopping
reading the current file and switching to a different file.
Reading the old file is resumed once the current file is complete.
Useful for #include or similiar constructs.
"""
def __init__(self, files=None, hook = None):
self.fi = [] # an array of file input objects. We push and pop onto this so we can resume.
self.files = [] # an array of files that need to be read later.
self.hook = None
self.current = None # the current file input object.
self.line = 0
if files is not None:
self.current = FileInput(files, openhook = self.hook)
def include(self, files):
if self.current is not None:
self.fi.push(self.current)
self.current = FileInput(files, openhook = self.hook)
def fileno(self):
if self.current is None:
return None
return self.current.fileno()
def filename(self):
if self.current is None:
return None
return self.current.filename()
def lineno(self):
return self.line
def filelineno(self):
if self.current is None:
return None
return self.current.filelineno()
def isfirstline(self):
if self.current is None:
return None
return self.current.isfirstline()
def isstdin(self):
return False
def nextfile(self):
if self.current is not None:
self.current.nextfile()
def close(self):
if self.current:
self.current.close()
self.fi = []
self.files = []
def readline(self):
if self.current is not None:
l = self.current.readline()
if len(l) > 0:
self.line = self.line + 1
return l
# Advance to the next file
if len (self.fi) > 0:
self.current = self.fi.pop()
return self.readline()
# see if there are any files left to open
if len (self.files) > 0:
self.current = FileInput(self.files, openhook = fileinput.hook_compressed)
self.files = []
return self.readline()
return ""
def __getimem__ (self):
return self.readline()
def __iter__(self):
return self
def next(self):
l = self.__getimem__()
if l != '':
return l
raise StopIteration
encoding = sys.getfilesystemencoding()
if encoding is None:
encoding = 'ascii'
fi = FileInput(files=unicode(t1, encoding))
lines = list(fi)
verify(lines == ["A\n", "B"])
finally:
remove_tempfiles(t1)
if verbose:
print "16. fileno()"
try:
t1 = writeTmp(1, ["A\nB"])
t2 = writeTmp(2, ["C\nD"])
fi = FileInput(files=(t1, t2))
verify(fi.fileno() == -1)
line = fi.next()
verify(fi.fileno() != -1)
fi.nextfile()
verify(fi.fileno() == -1)
line = list(fi)
verify(fi.fileno() == -1)
finally:
remove_tempfiles(t1, t2)
if verbose:
print "17. Specify opening mode"
try:
# invalid mode, should raise ValueError
fi = FileInput(mode="w")
raise TestFailed("FileInput should reject invalid mode argument")
