bytes.lower() bytearray.lower() Return a copy of the sequence with all the uppercase ASCII characters converted to their corresponding lowercase counterpart. For example: >>> b'Hello World'.lower() b'hello world' Lowercase ASCII characters are those byte values in the sequence b'abcdefghijklmnopqrstuvwxyz'. Uppercase ASCII characters are those byte values in the sequence b'ABCDEFGHIJKLMNOPQRSTUVWXYZ'. Note The bytearray version of this method does not operate in place - it always p

os.get_exec_path(env=None) Returns the list of directories that will be searched for a named executable, similar to a shell, when launching a process. env, when specified, should be an environment variable dictionary to lookup the PATH in. By default, when env is None, environ is used. New in version 3.2.

base64.a85encode(b, *, foldspaces=False, wrapcol=0, pad=False, adobe=False) Encode the bytes-like object b using Ascii85 and return the encoded bytes. foldspaces is an optional flag that uses the special short sequence ‘y’ instead of 4 consecutive spaces (ASCII 0x20) as supported by ‘btoa’. This feature is not supported by the “standard” Ascii85 encoding. wrapcol controls whether the output should have newline (b'\n') characters added to it. If this is non-zero, each output line will be at m

class wsgiref.simple_server.WSGIServer(server_address, RequestHandlerClass) Create a WSGIServer instance. server_address should be a (host,port) tuple, and RequestHandlerClass should be the subclass of http.server.BaseHTTPRequestHandler that will be used to process requests. You do not normally need to call this constructor, as the make_server() function can handle all the details for you. WSGIServer is a subclass of http.server.HTTPServer, so all of its methods (such as serve_forever() and

parser.compilest(st, filename='') The Python byte compiler can be invoked on an ST object to produce code objects which can be used as part of a call to the built-in exec() or eval() functions. This function provides the interface to the compiler, passing the internal parse tree from st to the parser, using the source file name specified by the filename parameter. The default value supplied for filename indicates that the source was an ST object. Compiling an ST object may result in exceptio

_fields_ A sequence defining the structure fields. The items must be 2-tuples or 3-tuples. The first item is the name of the field, the second item specifies the type of the field; it can be any ctypes data type. For integer type fields like c_int, a third optional item can be given. It must be a small positive integer defining the bit width of the field. Field names must be unique within one structure or union. This is not checked, only one field can be accessed when names are repeated. It

class asyncio.Lock(*, loop=None) Primitive lock objects. A primitive lock is a synchronization primitive that is not owned by a particular coroutine when locked. A primitive lock is in one of two states, ‘locked’ or ‘unlocked’. It is created in the unlocked state. It has two basic methods, acquire() and release(). When the state is unlocked, acquire() changes the state to locked and returns immediately. When the state is locked, acquire() blocks until a call to release() in another coroutine

turtle.numinput(title, prompt, default=None, minval=None, maxval=None) Parameters: title – string prompt – string default – number (optional) minval – number (optional) maxval – number (optional) Pop up a dialog window for input of a number. title is the title of the dialog window, prompt is a text mostly describing what numerical information to input. default: default value, minval: minimum value for input, maxval: maximum value for input The number input must be in the range minva

window.putwin(file) Write all data associated with the window into the provided file object. This information can be later retrieved using the getwin() function.

class io.RawIOBase Base class for raw binary I/O. It inherits IOBase. There is no public constructor. Raw binary I/O typically provides low-level access to an underlying OS device or API, and does not try to encapsulate it in high-level primitives (this is left to Buffered I/O and Text I/O, described later in this page). In addition to the attributes and methods from IOBase, RawIOBase provides the following methods: read(size=-1) Read up to size bytes from the object and return them. As a