junaidahmed501

<button
  [disabled]="!isButtonEnabled"
  (click)="handleButtonClick()"
  mat-button type="button" class="button">
  <span
    [matTooltip]="'Info about why the button is disabled.'"
    [matTooltipDisabled]="isButtonEnabled">
    <mat-icon>save</mat-icon>
    Action
  </span>

junaidahmed501

* OpenHatch - https://openhatch.org/search/?q=&language=Python
* PyLadies - https://github.com/pyladies
* New Coder - https://github.com/econchick/new-coder
* Django Girls - https://github.com/DjangoGirls
* Matplotlib - https://github.com/matplotlib/matplotlib
* Hylang - http://docs.hylang.org/en/latest/, https://github.com/hylang/hy
* Open Slides (Django) - http://openslides.org/
* Zeeguu - https://zeeguu.unibe.ch
* Project Jupyter - https://github.com/jupyter
* nbgrader - https://github.com/jupyter/nbgrader