57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
# -*- coding: utf-8 -*-
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import os
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import io
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try:
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# Python 2.x and 3.x support for checking string types
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assert basestring
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assert unicode
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except NameError:
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basestring = str
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unicode = str
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class Source(object):
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def __init__(self, url_or_file, type_):
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self.source = url_or_file
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self.type = type_
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if self.type == 'file':
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self.checkFiles()
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def isUrl(self):
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return 'url' in self.type
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def isFile(self, path=None):
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# dirty hack to check where file is opened with codecs module
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# (because it returns 'instance' type when encoding is specified
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if path:
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return isinstance(path, io.IOBase) or path.__class__.__name__ == 'StreamReaderWriter'
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else:
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return 'file' in self.type
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def checkFiles(self):
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if isinstance(self.source, list):
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for path in self.source:
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if not os.path.exists(path):
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raise IOError('No such file: %s' % path)
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else:
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if not hasattr(self.source, 'read') and not os.path.exists(self.source):
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raise IOError('No such file: %s' % self.source)
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def isString(self):
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return 'string' in self.type
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def isFileObj(self):
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return hasattr(self.source, 'read')
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def to_s(self):
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# String should be in unicode(python2)/str(python3) type since we will
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# later encode it to utf-8 bytes array to pipe into subprocess
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# With some charachters on python 2 it sets to str type (bytes) which is wrong
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# and cant later encode properly, this is a workaround for this.
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# See issue #42
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if isinstance(self.source, unicode):
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return self.source
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else:
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return unicode(self.source, 'utf-8')
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