A generic context manager for readable files.
Provides the gopen.readable() and gopen.gread() functions.
readable(source) supports with statements for readable file objects:
>>> with gopen.readable(source) as f: >>> <read from f>
gread(source) returns an iterator over input lines:
>>> from gopen import gread >>> lines = gread(source) >>> lines <generator object gread at 0x7f45752ebf10>
<source> can be:
a readable file object,
a file descriptor and
a file pathname.
gzip and bzip2-compressed files will be decompressed on the fly. No side effects: if source is a file descriptor or a file handle, it will not be closed.
>>> f = open('txt', 'r') >>> for source in ['txt', 'txt.gz', 'txt.bz2', f]: ... print('%r (%r)' % (list(gread(source)), source)) ... ['Simple is\n', 'better than complex.'] ('txt') ['Simple is\n', 'better than complex.'] ('txt.gz') ['Simple is\n', 'better than complex.'] ('txt.bz2') ['Simple is\n', 'better than complex.'] (<_io.TextIOWrapper name='txt' mode='r' encoding='UTF-8'>) >>> f.closed False
Python3 only (>= 3.4)
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