Skip to main content

tools for common operations in a module

Project description



The module olutils provide common tools to simplify project creation. It includes:

  • class with logger
  • parameter management
  • object management (copy, saving, loading)
  • plotting (if matplotlib available)


One can install olutils using pip install command:

pip install olutils


Use of temporal converters and deep defaultdict:

import olutils

# Building a deep default dict with datetimes as values
flights = olutils.deepdefaultdict(lambda x: None, depth=2)

# Filling it
flights['Paris-NY']['departure'] = olutils.str2dt("2019-01-15 08:00+01:00")
flights['Paris-NY']['arrival'] = olutils.str2dt("2019-01-15 10:30-05:00")
flights['NY-Paris']['departure'] = olutils.str2dt("2019-01-17 23:00-05:00")
flights['NY-Paris']['arrival'] = olutils.str2dt("2019-01-15 11:00+01:00")


File reading and object storing:

import olutils

my_dict = {'key_1': "value_1", 'key_2': 2}
my_rows = [{'col_1': 11, 'col_2': 21}, {'col_1': 21, 'col_2': 22}]

# Saving objects in output directory (automatically created), "output/my_dict.json"), "output/my_rows.csv"), "output/my_rows.unknown", mthd="json")

# Loading objects from save outputs
my_loaded_dict = olutils.load("output/my_dict.json")
my_loaded_rows = olutils.load("output/my_rows.csv")
my_loaded_rows_ = olutils.load("output/my_rows.unknown", mthd="json")


import matplotlib.pyplot as plt
import numpy as np

from olutils import plotiter

for i in plotiter(range(5), n_cols=3):
    x = [i + k/10 for k in range(10)]
    y = [np.sin(xk) for xk in x]
    plt.plot(x, y)


import olutils

# Operations
assert[2, 7]) == 14
assert olutils.identity(1) == 1

# Comparison
l1 = [1, 2, "hi", "bye"]
l2 = [3, "bye", "bye bye", 2]
assert olutils.diff(l1, l2) == {
    'common': {2, "bye"},
    'minus': {1, "hi"},
    'plus': {3, "bye bye"},

# Pretty display
assert olutils.err2str(ValueError("Message")) == "ValueError - Message"
l = [1, 2, 3, 4, 5]
imp_l = olutils.implicit_list(l, 4)
assert str(imp_l) == '[1, 2, ..., 5]'
dic = {
    'values': l,
    'info': {
        'name': "Some example",
        'also': "This is awesome (kinda)",
print(f"Dictionary used: {dic}")
print(f"Dictionary to pretty string:")
def leafconv(x):
    return (
        str(olutils.implicit_list(x, 5))
        if isinstance(x, list)
        else str(x)
print(olutils.dict2str(dic, leafconv=leafconv))

# Iteration
print("Iterating on very long iterable:")
for elem in olutils.countiter(range(int(10e6)), v_batch=100, prefix=". "):
    # One-Line display of progress every 100 iteration

# And more
# olutils.dict2str


For developers

Download the project

Clone repository:

git clone
cd olutils

One can make an editable code installation:

pip install -e .

Virtual Environment

python -m venv venv
source venv/Scripts/activate
python -m pip install -r requirements.txt

matplotlib does not have to be imported: plotting submodule is not loaded in that case

Release & Distribute


  1. Check current version to know what is the next version

    git tag
  2. Create release branch from branch-to-release (usually dev)

    git checkout <branch_to_release>
    git checkout release/x.x.x
  3. Add related section in release notes, commit and push (even if not completed yet)

    git commit -m "Adding release note related to current release"
    git push --set-upstream origin release/x.x.x
  4. Create 2 pull requests on github:

    • on from {release_branch} to {dev} (name="Release/x.x.x Dev)
    • on from {release_branch} to {master} (name="Release/x.x.x)
  5. Fill up the release note + commit and push

    • Read commits descriptions
    • Go through all the Files Changes

    Fill free to complete missing documentations and add comments in code

  6. Update setup

    • Update version
    • Ensure install_requires have all requirements
  7. Run tests on clean venv

    rm -r venv
    python -m venv venv
    source venv/Scripts/activate
    python m pytest -vv

    If any error, fix issues + commit and push

  8. Merge dev pull request on github

    • Check the File Changes (one should see the new release note and the possible fixes he made)
    • Merge pull request

    One can redo tests locally just to be sure

  9. Merge master pull request on github + Delete branch

  10. Add tag and Push

    • Tag master
    git checkout master
    git pull
    git tag -a vx.x.x -m "Version x.x.x"
    • Tag dev
    git checkout dev
    git pull
    git tag -a vx.x.x-dev -m "Version x.x.x (dev)"
    • Push
    git push origin --tags
  11. Update local repo:

    • Remove release branch: git branch -d release/x.x.x


First make sure to be on master branch with latest release.

  1. Install distribution libraries

    pip install check-manifest
    pip install twine
    pip install wheel
  2. Building manifest file:

    check-manifest --create
  3. Building the wheel:

    python bdist_wheel
  4. Building the source distribution:

    python sdist
  5. Publishing:

    python bdist_wheel sdist
    twine upload dist/*

For TestPyPi publication: twine upload --repository-url dist/*

Not working on Git terminal for some reason


python -m pytest olutils -vv
python -m pylint olutils --ignore-patterns=test*

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

olutils-1.2.0.tar.gz (36.3 kB view hashes)

Uploaded source

Built Distribution

olutils-1.2.0-py3-none-any.whl (42.6 kB view hashes)

Uploaded py3

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page