diff options
Diffstat (limited to 'Lib/io.py')
| -rw-r--r-- | Lib/io.py | 21 |
1 files changed, 8 insertions, 13 deletions
@@ -397,7 +397,7 @@ class IOBase(metaclass=abc.ABCMeta): """For backwards compatibility, a (slowish) readline().""" if hasattr(self, "peek"): def nreadahead(): - readahead = self.peek(1, unsafe=True) + readahead = self.peek(1) if not readahead: return 1 n = (readahead.find(b"\n") + 1) or len(readahead) @@ -785,14 +785,12 @@ class BufferedReader(_BufferedIOMixin): out = nodata_val return out - def peek(self, n=0, *, unsafe=False): + def peek(self, n=0): """Returns buffered bytes without advancing the position. The argument indicates a desired minimal number of bytes; we do at most one raw read to satisfy it. We never return more than self.buffer_size. - - Unless unsafe=True is passed, we return a copy. """ want = min(n, self.buffer_size) have = len(self._read_buf) @@ -801,10 +799,7 @@ class BufferedReader(_BufferedIOMixin): current = self.raw.read(to_read) if current: self._read_buf += current - result = self._read_buf - if unsafe: - result = result[:] - return result + return self._read_buf def read1(self, n): """Reads up to n bytes. @@ -815,7 +810,7 @@ class BufferedReader(_BufferedIOMixin): """ if n <= 0: return b"" - self.peek(1, unsafe=True) + self.peek(1) return self.read(min(n, len(self._read_buf))) def tell(self): @@ -930,8 +925,8 @@ class BufferedRWPair(BufferedIOBase): def write(self, b): return self.writer.write(b) - def peek(self, n=0, *, unsafe=False): - return self.reader.peek(n, unsafe=unsafe) + def peek(self, n=0): + return self.reader.peek(n) def read1(self, n): return self.reader.read1(n) @@ -991,9 +986,9 @@ class BufferedRandom(BufferedWriter, BufferedReader): self.flush() return BufferedReader.readinto(self, b) - def peek(self, n=0, *, unsafe=False): + def peek(self, n=0): self.flush() - return BufferedReader.peek(self, n, unsafe=unsafe) + return BufferedReader.peek(self, n) def read1(self, n): self.flush() |