diff options
Diffstat (limited to 'Lib/fileinput.py')
| -rw-r--r-- | Lib/fileinput.py | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/Lib/fileinput.py b/Lib/fileinput.py index 5c06627..692eeea 100644 --- a/Lib/fileinput.py +++ b/Lib/fileinput.py @@ -73,7 +73,6 @@ XXX Possible additions: - optional getopt argument processing - specify open mode ('r' or 'rb') -- fileno() - isatty() - read(), read(size), even readlines() @@ -153,6 +152,15 @@ def filelineno(): raise RuntimeError, "no active input()" return _state.filelineno() +def fileno(): + """ + Return the file number of the current file. When no file is currently + opened, returns -1. + """ + if not _state: + raise RuntimeError, "no active input()" + return _state.fileno() + def isfirstline(): """ Returns true the line just read is the first line of its file, @@ -175,8 +183,9 @@ class FileInput: """class FileInput([files[, inplace[, backup]]]) Class FileInput is the implementation of the module; its methods - filename(), lineno(), fileline(), isfirstline(), isstdin(), nextfile() - and close() correspond to the functions of the same name in the module. + filename(), lineno(), fileline(), isfirstline(), isstdin(), fileno(), + nextfile() and close() correspond to the functions of the same name + in the module. In addition it has a readline() method which returns the next input line, and a __getitem__() method which implements the sequence behavior. The sequence must be accessed in strictly @@ -334,6 +343,15 @@ class FileInput: def filelineno(self): return self._filelineno + def fileno(self): + if self._file: + try: + return self._file.fileno() + except ValueError: + return -1 + else: + return -1 + def isfirstline(self): return self._filelineno == 1 |