Return if file exists

Flushes the current output buffer to the network. .. versionchanged:: 4.0 Now returns a `.Future` if no callback is given.

Formats a timestamp in the format used by HTTP. The argument may be a numeric timestamp as returned by `time.time`, a time tuple as returned

Returns a list of the arguments with the given name. If the argument is not present, returns an empty list. This method searches bot

Get the global timeout setting for async tests. Returns a float, the timeout in seconds. .. versionadded:: 3.1

Context manager to ignore deprecation warnings.

Returns a comma-separated list for the given list of parts. The format is, e.g., "A, B and C", "A and B" or just "A" for lists of siz

Makes this the `IOLoop` for the current thread. An `IOLoop` automatically becomes current for its thread when it is started, but it i

Parses and loads the config file at the given path. The config file contains Python code that will be executed (so it is **not safe**

Prints all the command line options to stderr (or another file).

* FUNCTION NAME: queryStatus() * PURPOSE: * http status code comes before download (get) and * after upload (put), so this is called from 2

Initializing a sha3 context for given number of output bits */

* The core transformation. Process a 512-bit block. * The function has been taken from RFC 1321 with little changes. * * @param state algorithm sta

* The core transformation. Process a 512-bit block. * The function has been taken from RFC 3174 with little changes. * * @param hash algorithm stat

* The core transformation. Process a 512-bit block. * * @param hash algorithm state * @param block the message block to process */

* The core transformation. Process the specified block of data. * * @param hash the algorithm state * @param block the message block to process *

* The core transformation. Process a 512-bit block. * * @param hash algorithm state * @param block the message block to process */

Sends the given HTTP error code to the browser. If `flush()` has already been called, it is not possible to send an error, so this me

Returns the size of this buffer. */

This is avoid msvc issue in sleep_for that happens if the clock changes. See https://github.com/gabime/spdlog/issues/609

Returns an ``ssl.SSLSocket`` wrapping the given socket. ``ssl_options`` may be either an `ssl.SSLContext` object or a dictionary (as accepted

Starts the timer.

Convert this `IOStream` to an `SSLIOStream`. This enables protocols that begin in clear-text mode and switch to SSL after some initia

Returns the current task id, if any. Returns None if this process was not created by `fork_processes`.

Returns a URL-encoded version of the given value. If ``plus`` is true (the default), spaces will be represented as "+" instead of "%20". Thi

Implements `.HTTPConnection.write`. For backwards compatibility it is allowed but deprecated to skip `write_headers` and instead call

Escapes a string so it is valid within HTML or XML. Escapes the characters ``<``, ``>``, ``"``, ``'``, and ``&``. When used in attribute valu

* Each single-threaded apartment (STA) must have a message loop to handle calls from other processes and apartments within the same process! * In ord