Move unicode_argv to its own file

DeDRM_plugin/androidkindlekey.py

@@ -41,71 +41,6 @@ except ImportError:
 
 # Routines common to Mac and PC
 
-# Wrap a stream so that output gets flushed immediately
-# and also make sure that any unicode strings get
-# encoded using "replace" before writing them.
-class SafeUnbuffered:
-    def __init__(self, stream):
-        self.stream = stream
-        self.encoding = stream.encoding
-        if self.encoding == None:
-            self.encoding = "utf-8"
-    def write(self, data):
-        if isinstance(data,str) or isinstance(data,unicode):
-            # str for Python3, unicode for Python2
-            data = data.encode(self.encoding,"replace")
-        try:
-            buffer = getattr(self.stream, 'buffer', self.stream)
-            # self.stream.buffer for Python3, self.stream for Python2
-            buffer.write(data)
-            buffer.flush()
-        except:
-            # We can do nothing if a write fails
-            raise
-    def __getattr__(self, attr):
-        return getattr(self.stream, attr)
-
-try:
-    from calibre.constants import iswindows, isosx
-except:
-    iswindows = sys.platform.startswith('win')
-    isosx = sys.platform.startswith('darwin')
-
-def unicode_argv():
-    if iswindows:
-        # Uses shell32.GetCommandLineArgvW to get sys.argv as a list of Unicode
-        # strings.
-
-        # Versions 2.x of Python don't support Unicode in sys.argv on
-        # Windows, with the underlying Windows API instead replacing multi-byte
-        # characters with '?'.  So use shell32.GetCommandLineArgvW to get sys.argv
-        # as a list of Unicode strings and encode them as utf-8
-
-        from ctypes import POINTER, byref, cdll, c_int, windll
-        from ctypes.wintypes import LPCWSTR, LPWSTR
-
-        GetCommandLineW = cdll.kernel32.GetCommandLineW
-        GetCommandLineW.argtypes = []
-        GetCommandLineW.restype = LPCWSTR
-
-        CommandLineToArgvW = windll.shell32.CommandLineToArgvW
-        CommandLineToArgvW.argtypes = [LPCWSTR, POINTER(c_int)]
-        CommandLineToArgvW.restype = POINTER(LPWSTR)
-
-        cmd = GetCommandLineW()
-        argc = c_int(0)
-        argv = CommandLineToArgvW(cmd, byref(argc))
-        if argc.value > 0:
-            # Remove Python executable and commands if present
-            start = argc.value - len(sys.argv)
-            return [argv[i] for i in
-                    range(start, argc.value)]
-        # if we don't have any arguments at all, just pass back script name
-        # this should never happen
-        return ["kindlekey.py"]
-    else:
-        argvencoding = sys.stdin.encoding or "utf-8"
-        return [arg if (isinstance(arg, str) or isinstance(arg,unicode)) else str(arg, argvencoding) for arg in sys.argv]
 
 class DrmException(Exception):
     pass
@@ -342,9 +277,7 @@ def usage(progname):
 
 
 def cli_main():
-    sys.stdout=SafeUnbuffered(sys.stdout)
-    sys.stderr=SafeUnbuffered(sys.stderr)
-    argv=unicode_argv()
+    argv=sys.argv
     progname = os.path.basename(argv[0])
     print("{0} v{1}\nCopyright © 2010-2020 Thom, Apprentice Harper et al.".format(progname,__version__))