Python File.read方法代码示例

# 需要导入模块: from zim.fs import File [as 别名]
# 或者: from zim.fs.File import read [as 别名]
	def testFS(self):
		'''Test async FS operations'''

		self.path = self.create_tmp_dir('testFS')+'/file.txt'

		file = File(self.path)

		op1 = file.write_async('foo bar 1\n')
		op2 = file.write_async('foo bar 2\n')

		op1.wait()
		op2.wait()

		self.assertEqual(file.read(), 'foo bar 2\n')

# 需要导入模块: from zim.fs import File [as 别名]
# 或者: from zim.fs.File import read [as 别名]
class ConfigFile(object):
	'''Container object for a config file

	Maps to a "base" file in the home folder, used to write new values,
	and one or more default files, e.g. in C{/usr/share/zim}, which
	are the fallback to get default values

	@ivar file: the underlying file object for the base config file
	in the home folder

	@note: this class implement similar API to the L{File} class but
	is explicitly not a sub-class of L{File} because config files should
	typically not be moved, renamed, etc. It just implements the reading
	and writing methods.
	'''

	def __init__(self, path, file=None):
		'''Constructor
		@param path: either basename as string or tuple with relative path,
		is resolved relative to the default config dir for zim.
		@param file: optional argument for some special case to
		override the base file in the home folder.
		'''
		if isinstance(path, basestring):
			path = (path,)
		self._path = tuple(path)
		if file:
			self.file = file
		else:
			self.file = File((XDG_CONFIG_HOME, 'zim') + self._path)

	def __repr__(self):
		return '<%s: %s>' % (self.__class__.__name__, self.file.path)

	def __eq__(self, other):
		return isinstance(other, ConfigFile) \
		and other._path == self._path \
		and other.file == self.file

	@property
	def basename(self):
		return self.file.basename

	def default_files(self):
		'''Generator that yields default config files (read-only) to
		use instead of the standard file when it is still empty.
		Typically only the first one is used.
		'''
		for dir in config_dirs():
			default = dir.file(self._path)
			if default.exists():
				yield default

	def touch(self):
		'''Ensure the custom file in the home folder exists. Either by
		copying a default config file, or touching an empty file.
		Intended to be called before trying to edit the file with an
		external editor.
		'''
		if not self.file.exists():
			for file in self.default_files():
				file.copyto(self.file)
				break
			else:
				self.file.touch() # create empty file

	def read(self, fail=False):
		'''Read the base file or first default file
		@param fail: if C{True} a L{FileNotFoundError} error is raised
		when neither the base file or a default file are found. If
		C{False} it will return C{''} for a non-existing file.
		@returns: file content as a string
		'''
		try:
			return self.file.read()
		except FileNotFoundError:
			for file in self.default_files():
				return file.read()
			else:
				if fail:
					raise
				else:
					return ''

	def readlines(self, fail=False):
		'''Read the base file or first default file
		@param fail: if C{True} a L{FileNotFoundError} error is raised
		when neither the base file or a default file are found. If
		C{False} it will return C{[]} for a non-existing file.
		@returns: file content as a list of lines
		'''
		try:
			return self.file.readlines()
		except FileNotFoundError:
			for file in self.default_files():
				return file.readlines()
			else:
				if fail:
					raise
				else:
#.........这里部分代码省略.........

# 需要导入模块: from zim.fs import File [as 别名]
# 或者: from zim.fs.File import read [as 别名]
	def runTest(self):
		plugins = PluginManager.list_installed_plugins()
		self.assertTrue(len(plugins) > 10)
		self.assertTrue('spell' in plugins)
		self.assertTrue('linkmap' in plugins)

		pluginindex = File('data/manual/Plugins.txt').read()

		seen = {
			'name': set(),
			'description': set(),
			'help': set(),
		}
		for name in plugins:
			#~ print '>>', name
			klass = PluginManager.get_plugin_class(name)

			# test plugin info
			for key in ('name', 'description', 'author'):
				self.assertTrue(
					klass.plugin_info.get(key),
					'Plugin %s misses info field \'%s\'' % (name, key)
				)

			for key in ('name', 'description', 'help'):
				self.assertIn(key, klass.plugin_info, 'Plugin %s missing "%s"' % (name, key))
				value = klass.plugin_info[key]
				self.assertFalse(
					value in seen[key],
					'Value for \'%s\' in %s seen before - copy-paste error ?' % (key, name)
				)
				seen[key].add(value)

			# test manual page present and at least documents preferences
			page = klass.plugin_info['help']
			self.assertTrue(page.startswith('Plugins:'), 'Help page for %s not valid' % name)

			rellink = "+%s" % page[8:]
			self.assertIn(rellink, pluginindex, 'Missing links "%s" in manual/Plugins.txt' % rellink)

			file = File('data/manual/' + page.replace(':', '/').replace(' ', '_') + '.txt')
			self.assertTrue(file.exists(), 'Missing file: %s' % file)

			manual = file.read()
			for pref in klass.plugin_preferences:
				label = pref[2]
				if '\n' in label:
					label, x = label.split('\n', 1)
					label = label.rstrip(',')
				self.assertIn(label, manual, 'Preference "%s" for %s plugin not documented in manual page' % (label, name))

			# test dependencies data
			dep = klass.check_dependencies()
			self.assertTrue(isinstance(dep,tuple))
			check, dep = dep
			self.assertTrue(isinstance(check,bool))
			self.assertTrue(isinstance(dep,list))
			for i in range(len(dep)):
				self.assertTrue(isinstance(dep[i],tuple))
				self.assertTrue(isinstance(dep[i][0],str))
				self.assertTrue(isinstance(dep[i][1],bool))
				self.assertTrue(isinstance(dep[i][2],bool))