(self, n=-1)
Read and return up to n bytes.
        If the argument is omitted, None, or negative, data is read and returned until EOF is reached..
Read and return up to n bytes.
        If the argument is omitted, None, or negative, data is read and returned until EOF is reached..
Read and return up to n bytes . If the argument is omitted None or negative data is read and returned until EOF is reached ..
def read(self, n=-1):
        """Read and return up to n bytes.
        If the argument is omitted, None, or negative, data is read and returned until EOF is reached..
        """
        buf = b''
        if n is None:
            n = -1
        while True:
            if n < 0:
                data = self.read1(n)
            elif n > len(buf):
                data = self.read1(n - len(buf))
            else:
                return buf
            if len(data) == 0:
                return buf
            buf += data
def read ( self , n = - 1 ) : buf = b'' if n is None : n = - 1 while True : if n < 0 : data = self . read1 ( n ) elif n > len ( buf ) : data = self . read1 ( n - len ( buf ) ) else : return buf if len ( data ) == 0 : return buf buf += data