lsst.utils
The lsst.utils module provides common code for tests, interfacing between C++ and Python, and debugging.
Python API reference
lsst.utils Package
Functions
continueClass(cls) |
Re-open the decorated class, adding any new definitions into the original. |
demangleType(type_name) |
Demangle a C++ type string. |
deprecate_pybind11(obj, reason, version, …) |
Deprecate a pybind11-wrapped C++ interface function, method or class. |
doImport(importable) |
Import a python object given an importable string and return it. |
doImportType(importable) |
Import a python type given an importable string and return it. |
getPackageDir(package_name) |
Find the file system location of the EUPS package. |
get_caller_name(skip) |
Get the name of the caller method. |
inClass(cls[, name]) |
Add the decorated function to the given class as a method. |
inheritDoc(klass) |
Extend existing documentation for a method that exists in another class and extend it with any additional documentation defined. |
isEnabled() |
Check that backtrace is enabled. |
suppress_deprecations(category) |
Suppress warnings generated by deprecated.sphinx.deprecated. |
Classes
TemplateMeta |
A metaclass for abstract base classes that tie together wrapped C++ template types. |
Class Inheritance Diagram
lsst.utils.tests Module
Functions
init() |
Initialize the memory tester and file descriptor leak tester. |
getTempFilePath(ext, expectOutput) |
Return a path suitable for a temporary file and try to delete the file on success |
assertFloatsAlmostEqual(testCase, lhs, …) |
Highly-configurable floating point comparisons for scalars and arrays. |
assertFloatsNotEqual(testCase, lhs, …) |
Fail a test if the given floating point values are equal to within the given tolerances. |
assertFloatsEqual(testCase, lhs, …) |
Assert that lhs == rhs (both numeric types, whether scalar or array). |
debugger(*exceptions) |
Enter the debugger when there’s an uncaught exception |
classParameters(**settings) |
Class decorator for generating unit tests |
methodParameters(**settings) |
Iterate over supplied settings to create subtests automatically. |
temporaryDirectory() |
Context manager that creates and destroys a temporary directory. |
Classes
MemoryTestCase([methodName]) |
Check for resource leaks. |
ExecutablesTestCase([methodName]) |
Test that executables can be run and return good status. |
TestCase([methodName]) |
Subclass of unittest.TestCase that adds some custom assertions for convenience. |
Class Inheritance Diagram
lsst.utils.logging Module
Functions
getLogger(name, logger) |
Get a logger compatible with LSST usage. |
trace_set_at(name, number) |
Adjust logging level to display messages with the trace number being less than or equal to the provided value. |
Classes
LsstLogAdapter(logger, extra) |
A special logging adapter to provide log features for LSST code. |
PeriodicLogger(logger, …) |
Issue log messages if a time threshold has elapsed. |
Class Inheritance Diagram
lsst.utils.iteration Module
Functions
chunk_iterable(data, chunk_size) |
Return smaller chunks of an iterable. |
ensure_iterable(a) |
Ensure that the input is iterable. |
isplit(string, sep) |
Split a string or bytes by separator returning a generator. |
lsst.utils.classes Module
Functions
cached_getter(func, _R]) |
Decorate a method to cache the result. |
immutable(cls) |
Decorate a class to simulate a simple form of immutability. |
Classes
Singleton |
Metaclass to convert a class to a Singleton. |
Class Inheritance Diagram
lsst.utils.introspection Module
Functions
get_class_of(typeOrName, str]) |
Given the type name or a type, return the python type. |
get_full_type_name(cls) |
Return full type name of the supplied entity. |
get_instance_of(typeOrName, str], *args, …) |
Given the type name or a type, instantiate an object of that type. |
get_caller_name(stacklevel) |
Get the name of the caller method. |
lsst.utils.timer Module
Functions
logInfo(obj, prefix, logLevel, metadata, …) |
Log timer information to obj.metadata and obj.log. |
timeMethod(_func, *, metadata, VT]] = None, …) |
Measure duration of a method. |
time_this(log, msg, level, prefix, args, …) |
Time the enclosed block and issue a log message. |
lsst.utils.packages Module
Classes
Packages |
A table of packages and their versions. |
Class Inheritance Diagram