apps.is_installed(app_name) Checks whether an application with the given name exists in the registry. app_name

PolynomialTransform class skimage.transform.PolynomialTransform(params=None)

importlib.util.module_from_spec(spec) Create a new module based on spec and spec.loader.create_module()

numpy.polynomial.legendre.legline(off, scl)

FileCookieJar.filename Filename of default file in which to keep cookies. This attribute may be assigned to.

socket.fileno() Return the socket’s file descriptor (a small integer), or -1 on failure. This is useful with

DataFrame.__iter__()

class models.BaseInlineFormSet Inline formsets is a small abstraction layer on top of model formsets. These simplify the case

name The name of the parameter as a string. The name must be a valid Python identifier.

unlock() Three locking mechanisms are used—dot locking and, if available, the flock() and lockf()