audioop.lin2adpcm(fragment, width, state) Convert samples to 4 bit Intel/DVI ADPCM encoding. ADPCM coding is an adaptive coding scheme, whereby each 4 bit number is the difference between one sample and the next, divided by a (varying) step. The Intel/DVI ADPCM algorithm has been selected for use by the IMA, so it may well become a standard. state is a tuple containing the state of the coder. The coder returns a tuple (adpcmfrag, newstate), and the newstate should be passed to the next call

set_data(path, data) Concrete implementation of importlib.abc.SourceLoader.set_data().

class ftplib.FTP_TLS(host='', user='', passwd='', acct='', keyfile=None, certfile=None, context=None, timeout=None, source_address=None) A FTP subclass which adds TLS support to FTP as described in RFC 4217. Connect as usual to port 21 implicitly securing the FTP control connection before authenticating. Securing the data connection requires the user to explicitly ask for it by calling the prot_p() method. context is a ssl.SSLContext object which allows bundling SSL configuration options, ce

'__main__' is the name of the scope in which top-level code executes. A module’s __name__ is set equal to '__main__' when read from standard input, a script, or from an interactive prompt. A module can discover whether or not it is running in the main scope by checking its own __name__, which allows a common idiom for conditionally executing code in a module when it is run as a script or with python -m but not when it is imported: if __name__ == "__main__": # execute only if run as a script

tempfile.gettempdir() Return the name of the directory used for temporary files. This defines the default value for the dir argument to all functions in this module. Python searches a standard list of directories to find one which the calling user can create files in. The list is: The directory named by the TMPDIR environment variable. The directory named by the TEMP environment variable. The directory named by the TMP environment variable. A platform-specific location:On Windows, the direct

Request.method The HTTP request method to use. By default its value is None, which means that get_method() will do its normal computation of the method to be used. Its value can be set (thus overriding the default computation in get_method()) either by providing a default value by setting it at the class level in a Request subclass, or by passing a value in to the Request constructor via the method argument. New in version 3.3. Changed in version 3.4: A default value can now be set in sub

coroutine AbstractEventLoop.sock_sendall(sock, data) Send data to the socket. Modeled after blocking socket.socket.sendall() method. The socket must be connected to a remote socket. This method continues to send data from data until either all data has been sent or an error occurs. None is returned on success. On error, an exception is raised, and there is no way to determine how much data, if any, was successfully processed by the receiving end of the connection. With SelectorEventLoop even

winsound.MessageBeep(type=MB_OK) Call the underlying MessageBeep() function from the Platform API. This plays a sound as specified in the registry. The type argument specifies which sound to play; possible values are -1, MB_ICONASTERISK, MB_ICONEXCLAMATION, MB_ICONHAND, MB_ICONQUESTION, and MB_OK, all described below. The value -1 produces a “simple beep”; this is the final fallback if a sound cannot be played otherwise.

body_encode(string) Body-encode the string string. The type of encoding (base64 or quoted-printable) will be based on the body_encoding attribute.

from_float(f) Classmethod that converts a float to a decimal number, exactly. Note Decimal.from_float(0.1) is not the same as Decimal(‘0.1’). Since 0.1 is not exactly representable in binary floating point, the value is stored as the nearest representable value which is 0x1.999999999999ap-4. That equivalent value in decimal is 0.1000000000000000055511151231257827021181583404541015625. Note From Python 3.2 onwards, a Decimal instance can also be constructed directly from a float. >>&g