Delete unused function _wrap_compressed

Author: dhimmel

pandas/io/parsers.py

@@ -1748,70 +1748,6 @@ def count_empty_vals(vals):
     return sum([1 for v in vals if v == '' or v is None])
 
 
-def _wrap_compressed(f, compression, encoding=None):
-    """wraps compressed fileobject in a decompressing fileobject
-    NOTE: For all files in Python 3.2 and for bzip'd files under all Python
-    versions, this means reading in the entire file and then re-wrapping it in
-    StringIO.
-    """
-    compression = compression.lower()
-    encoding = encoding or get_option('display.encoding')
-
-    if compression == 'gzip':
-        import gzip
-
-        f = gzip.GzipFile(fileobj=f)
-        if compat.PY3:
-            from io import TextIOWrapper
-
-            f = TextIOWrapper(f)
-        return f
-    elif compression == 'bz2':
-        import bz2
-
-        if compat.PY3:
-            f = bz2.open(f, 'rt', encoding=encoding)
-        else:
-            # Python 2's bz2 module can't take file objects, so have to
-            # run through decompress manually
-            data = bz2.decompress(f.read())
-            f = StringIO(data)
-        return f
-    elif compression == 'zip':
-        import zipfile
-        zip_file = zipfile.ZipFile(f)
-        zip_names = zip_file.namelist()
-
-        if len(zip_names) == 1:
-            file_name = zip_names.pop()
-            f = zip_file.open(file_name)
-            return f
-
-        elif len(zip_names) == 0:
-            raise ValueError('Corrupted or zero files found in compressed '
-                             'zip file %s', zip_file.filename)
-
-        else:
-            raise ValueError('Multiple files found in compressed '
-                             'zip file %s', str(zip_names))
-
-    elif compression == 'xz':
-
-        lzma = compat.import_lzma()
-        f = lzma.LZMAFile(f)
-
-        if compat.PY3:
-            from io import TextIOWrapper
-
-            f = TextIOWrapper(f)
-
-        return f
-
-    else:
-        raise ValueError('do not recognize compression method %s'
-                         % compression)
-
-
 class PythonParser(ParserBase):
 
     def __init__(self, f, **kwds):