scottbrian-utils 6.0.0

Miscellaneous utilities

Intro

This is a collection of generally useful functions for use with any application.

1. The diag_msg function allows you to print a message with the time and caller sequence added for you.

2. The doc_checker module provides an easy way to do a doctest.

3. The etrace decorator provide entry and exit tracing including passed args and returned values.

4. The ExcHook class handles thread exceptions for test cases to ensure that the test case fails.

5. The FileCatalog item allows you to map file names to their paths.

6. The print_flower_box_msg function allows you to print text in a flower box (i.e., surrounded by asterisks).

7. The log_verifier allows you to verify that expected log messages have been issued.

8. The msgs item is a simple facility you can use in test cases to send messages between threads.

9. The Pauser class provides a pause function similar to the python sleep function, but with improved accuracy.

10. The verify_lib function in testlib_verifier.py allows you to verify that you are testing the built code and not the source.

11. The stop_watch item is a simple timing function that you can use in test cases.

12. The @time_box decorator allows you to print start, stop, and execution times.

13. The timer item provides a way to keep track of time to determine when a function has timed out.

14. The UniqueTS class provides a way to obtain a unique timestamp.

Examples:

With diag_msg you can print messages with the time and caller info added automatically.

Example:

print a diagnostic message (<input> appears as the module name when run from the console)

>>> from scottbrian_utils.diag_msg import diag_msg
>>> diag_msg('this is a diagnostic message')
16:20:05.909260 <input>:1 this is a diagnostic message

With FileCatalog, you can code your application with file names and retrieve their paths at run time from a catalog. This allows you to use different catalogs for the same set of files, such as one catalog for production and another for testing. Here’s as example:

>>> from scottbrian_utils.file_catalog import FileCatalog
>>> from pathlib import Path
>>> prod_cat = FileCatalog({'file1': Path('/prod_files/file1.csv')})
>>> print(prod_cat.get_path('file1'))
/prod_files/file1.csv

>>> test_cat = FileCatalog({'file1': Path('/test_files/test_file1.csv')})
>>> print(test_cat.get_path('file1'))
/test_files/test_file1.csv

With @time_box, you can decorate a function to be sandwiched between start time and end time messages like this:

>>> from scottbrian_utils.time_hdr import time_box

>>> @time_box
... def func2() -> None:
...      print('2 * 3 =', 2*3)

>>> func2()
<BLANKLINE>
**********************************************
* Starting func2 on Mon Jun 29 2020 18:22:50 *
**********************************************
2 * 3 = 6
<BLANKLINE>
********************************************
* Ending func2 on Mon Jun 29 2020 18:22:51 *
* Elapsed time: 0:00:00.001204             *
********************************************

With Pauser, you can pause execution for a specified number of seconds like this:

from scottbrian_utils.pauser import Pauser
pauser = Pauser()
pauser.pause(1.5)  # pause for 1.5 seconds

Installation

pip install scottbrian-utils

Development setup

See tox.ini

Release History

• 1.0.0

  • Initial release

• 1.0.1

  • Added doc link to setup.py

  • Added version number to __init__.py

  • Added code in setup.py to get version number from __init__.py

  • Added licence to setup.py classifiers

• 1.1.0

  • Added FileCatalog

• 1.2.0

  • Added diag_msg

• 2.0.0

  • changed get_formatted_call_sequence and diag_msg (both in diag_msg.py) to get class name in additional cases

  • dropped support for python 3.6, 3.7, and 3.8

• 2.1.0

  • added pauser

  • support for python 3.10

• 2.2.0

  • added repr for LogVer

• 2.3.0

  • added is_specified method in Timer

  • added timeout_value in Timer

  • support for python 3.11

• 2.4.0

  • added fullmatch parm to add_msg in log_ver.py

  • added print_matched parm to print_match_results in log_ver.py

• 3.0.0

  • added unique_ts

  • added doc_checker

  • support python 3.12

  • drop support python < 3.12

• 4.0.0

  • added timedelta_match_string to time_hdr.py

  • added entry_trace.py

  • restructured log_verifier:

    • performance improvements

    • changes to clarify that regex patterns are used

    • changed report format

    • method add_pattern replaces deprecated method add_msg

    • method verify_match_results replaces deprecated verify_log_results

• 4.0.1

  • fix etrace to put 2 colons between file name and func

• 4.1.0

  • add log_ver support to etrace

  • add stacklevel and enable parms to log_ver test_msg

• 5.0.0

  • support python 3.13

  • etrace log_ver instantiate LogVer

  • etrace log_ver accept LogVer instance

  • etrace omit_caller

  • etrace use caller __name__ for log_name

• 6.0.0

  • drop support for python 3.12

  • add ExcHook for test case use to catch thread errors

  • add testlib_verifier to check that built code is being tested

Meta

Scott Tuttle

Distributed under the MIT license. See LICENSE for more information.

Contributing

1. Fork it (<https://github.com/yourname/yourproject/fork>)

2. Create your feature branch (git checkout -b feature/fooBar)

3. Commit your changes (git commit -am ‘Add some fooBar’)

4. Push to the branch (git push origin feature/fooBar)

5. Create a new Pull Request