tkinter.Tcl(screenName=None, baseName=None, className='Tk', useTk=0) The Tcl() function is a factory function which creates an object much like that created by the Tk class, except that it does not initialize the Tk subsystem. This is most often useful when driving the Tcl interpreter in an environment where one doesn’t want to create extraneous toplevel windows, or where one cannot (such as Unix/Linux systems without an X server). An object created by the Tcl() object can have a Toplevel wi

ScrolledText.vbar The scroll bar widget.

ScrolledText.frame The frame which surrounds the text and scroll bar widgets.

exception TimeoutError Raised when a system function timed out at the system level. Corresponds to errno ETIMEDOUT.

timeit(number=1000000) Time number executions of the main statement. This executes the setup statement once, and then returns the time it takes to execute the main statement a number of times, measured in seconds as a float. The argument is the number of times through the loop, defaulting to one million. The main statement, the setup statement and the timer function to be used are passed to the constructor. Note By default, timeit() temporarily turns off garbage collection during the timing

repeat(repeat=3, number=1000000) Call timeit() a few times. This is a convenience function that calls the timeit() repeatedly, returning a list of results. The first argument specifies how many times to call timeit(). The second argument specifies the number argument for timeit(). Note It’s tempting to calculate mean and standard deviation from the result vector and report these. However, this is not very useful. In a typical case, the lowest value gives a lower bound for how fast your mach

print_exc(file=None) Helper to print a traceback from the timed code. Typical use: t = Timer(...) # outside the try/except try: t.timeit(...) # or t.repeat(...) except Exception: t.print_exc() The advantage over the standard traceback is that source lines in the compiled template will be displayed. The optional file argument directs where the traceback is sent; it defaults to sys.stderr.

class timeit.Timer(stmt='pass', setup='pass', timer=, globals=None) Class for timing execution speed of small code snippets. The constructor takes a statement to be timed, an additional statement used for setup, and a timer function. Both statements default to 'pass'; the timer function is platform-dependent (see the module doc string). stmt and setup may also contain multiple statements separated by ; or newlines, as long as they don’t contain multi-line string literals. The statement will

timeit.timeit(stmt='pass', setup='pass', timer=, number=1000000, globals=None) Create a Timer instance with the given statement, setup code and timer function and run its timeit() method with number executions. The optional globals argument specifies a namespace in which to execute the code. Changed in version 3.5: The optional globals parameter was added.

timeit.repeat(stmt='pass', setup='pass', timer=, repeat=3, number=1000000, globals=None) Create a Timer instance with the given statement, setup code and timer function and run its repeat() method with the given repeat count and number executions. The optional globals argument specifies a namespace in which to execute the code. Changed in version 3.5: The optional globals parameter was added.