Around 10 Outreachy applicants have joined the Slack channel so far, so hopefully they’ll all start contributing to the project soon.

Most of the applicants are still getting familiar with the codebase. It’s quite large, so it might take a few more days or at least this week before they start contributing (opening PRs.)

Week 13: August 25 - August 29

Week 12: August 18 - August 22

Week 11: August 11 - August 15

Week 10: August 4 - August 8

Weekly Internship Report

Week 8: July 21 – July 25

Weekly Internship Report

Overview of Tasks Completed:

Week 5: June 30 – July 4

Week 4: June 23 – June 27

Week 3: June 16 – June 20
Overview of Tasks Completed:

Week 2: June 9 - June 13
Overview of Tasks Completed:

Week 1: June 2 - June 6
Overview of Tasks Completed:

• PR #6342 Minor Chore: Remove N+1 Query From Download Single Question Results CSV
• Completed and refactored PR #6329 Locally to improve performance of survey results data loading, reducing page load time significantly.
• Finalized PR #6343, optimizing Survey#course_for by eliminating N+1 queries and improving code clarity.
• Investigated slow points in several controllers (e.g., CampaignController, RevisionFeedback)

Thank you so much! @Gopavasanth

Thank you for the feedback @Ederporto . I had question regarding the bar-chart-race is it necessary that we have to use bar-chart-race 0.1.0 or can we use bar-chart-race 0.2.0 since 0.2.0 has some bug fixes like ValueError: Image size of 27822028x436 pixels is too large.

In T358412#9633926, @Aixvik wrote:

In T358412#9633201, @MahimaSinghal wrote:

In T358412#9633199, @Aixvik wrote:

In T358412#9633197, @MahimaSinghal wrote:

In T358412#9633189, @Aixvik wrote:

In T358412#9633183, @MahimaSinghal wrote:

In T358412#9633179, @Aixvik wrote:

In T358412#9633100, @MahimaSinghal wrote:

In T358412#9632678, @Aixvik wrote:

Not able to generate video from the data frame? What might the reason be? As we have 7k+ columns and it's taking time can we generate a bar chart race video of only a few columns as an example?
And I read in the documentation that we should have 'ffmpeg' installed on our device as I am working on web paws Jupyter notebook and not locally do I also have to install 'ffmpeg'?

Download latest FFmpeg static build.

exist = !which ffmpeg
if not exist:

!curl https://johnvansickle.com/ffmpeg/releases/ffmpeg-release-amd64-static.tar.xz -o ffmpeg.tar.xz \
   && tar -xf ffmpeg.tar.xz && rm ffmpeg.tar.xz
ffmdir = !find . -iname ffmpeg-*-static
path = %env PATH
path = path + ':' + ffmdir[0]
%env PATH $path

!which ffmpeg
Add this code to your notebook , and you will be good to go.

Getting same error again.

Can you share the exact error, What are the errors you are getting Exactly?

KeyError Traceback (most recent call last)
File /srv/paws/lib/python3.10/site-packages/PIL/Image.py:2416, in Image.save(self, fp, format, **params)

2415 try:

-> 2416 format = EXTENSION[ext]

2417 except KeyError as e:

KeyError: '.mp4'

The above exception was the direct cause of the following exception:

ValueError Traceback (most recent call last)
File /srv/paws/lib/python3.10/site-packages/bar_chart_race/_make_chart.py:435, in _BarChartRace.make_animation(self)

434     else:

--> 435 ret_val = anim.save(self.filename, fps=self.fps, writer=self.writer)

436 except Exception as e:

File /srv/paws/lib/python3.10/site-packages/matplotlib/animation.py:1089, in Animation.save(self, filename, writer, fps, dpi, codec, bitrate, extra_args, metadata, extra_anim, savefig_kwargs, progress_callback)

1086 # canvas._is_saving = True makes the draw_event animation-starting
1087 # callback a no-op; canvas.manager = None prevents resizing the GUI
1088 # widget (both are likewise done in savefig()).

-> 1089 with writer.saving(self._fig, filename, dpi), \

1090      cbook._setattr_cm(self._fig.canvas, _is_saving=True, manager=None):
1091     for anim in all_anim:

File /usr/lib/python3.10/contextlib.py:142, in _GeneratorContextManager.exit(self, typ, value, traceback)

141 try:

--> 142 next(self.gen)

143 except StopIteration:

File /srv/paws/lib/python3.10/site-packages/matplotlib/animation.py:245, in AbstractMovieWriter.saving(self, fig, outfile, dpi, *args, **kwargs)

244 finally:

--> 245 self.finish()

File /srv/paws/lib/python3.10/site-packages/matplotlib/animation.py:515, in PillowWriter.finish(self)

514 def finish(self):

--> 515 self._frames[0].save(

516         self.outfile, save_all=True, append_images=self._frames[1:],
517         duration=int(1000 / self.fps), loop=0)

File /srv/paws/lib/python3.10/site-packages/PIL/Image.py:2419, in Image.save(self, fp, format, **params)

2418         msg = f"unknown file extension: {ext}"

-> 2419 raise ValueError(msg) from e

2421 if format.upper() not in SAVE:

ValueError: unknown file extension: .mp4

During handling of the above exception, another exception occurred:

Exception Traceback (most recent call last)
Cell In[8], line 11

 4     bcr.bar_chart_race(
 5         df=df,
 6         filename='AnalysisVideo.mp4',  
 7         title='Bar Chart Race',
 8         writer='matplotlib'
 9     )
10     return 'AnalysisVideo.mp4'

---> 11 video = dataframe_to_race_chart(first_20)

12 Video(video, embed=True)

Cell In[8], line 4, in dataframe_to_race_chart(df)

3 def dataframe_to_race_chart(df):

----> 4 bcr.bar_chart_race(

 5         df=df,
 6         filename='AnalysisVideo.mp4',  
 7         title='Bar Chart Race',
 8         writer='matplotlib'
 9     )
10     return 'AnalysisVideo.mp4'

File /srv/paws/lib/python3.10/site-packages/bar_chart_race/_make_chart.py:783, in bar_chart_race(df, filename, orientation, sort, n_bars, fixed_order, fixed_max, steps_per_period, period_length, interpolate_period, label_bars, bar_size, period_label, period_fmt, period_summary_func, perpendicular_bar_func, figsize, cmap, title, title_size, bar_label_size, tick_label_size, shared_fontdict, scale, writer, fig, dpi, bar_kwargs, filter_column_colors)

 461 '''
 462 Create an animated bar chart race using matplotlib. Data must be in 
 463 'wide' format where each row represents a single time period and each 
(...)
 776 These sizes are relative to plt.rcParams['font.size'].
 777 '''
 778 bcr = _BarChartRace(df, filename, orientation, sort, n_bars, fixed_order, fixed_max,
 779                     steps_per_period, period_length, interpolate_period, label_bars, bar_size, 
 780                     period_label, period_fmt, period_summary_func, perpendicular_bar_func, 
 781                     figsize, cmap, title, title_size, bar_label_size, tick_label_size, 
 782                     shared_fontdict, scale, writer, fig, dpi, bar_kwargs, filter_column_colors)

--> 783 return bcr.make_animation()

File /srv/paws/lib/python3.10/site-packages/bar_chart_race/_make_chart.py:446, in _BarChartRace.make_animation(self)

444     else:
445         message = str(e)

--> 446 raise Exception(message)

447 finally:
448     plt.rcParams = self.orig_rcParams

Exception: You do not have ffmpeg installed on your machine. Download

ffmpeg from here: https://www.ffmpeg.org/download.html.

Matplotlib's original error message below:

unknown file extension: .mp4

What output do you get after running this code, specific to this code block:

If the code I provided would have executed correctly, then you should have a folder named ffmpeg in your home folder.

% Total % Received % Xferd Average Speed Time Time Time Current

Dload  Upload   Total   Spent    Left  Speed

100 39.4M 100 39.4M 0 0 144M 0 --:--:-- --:--:-- --:--:-- 145M
env: PATH=/srv/paws/pwb:/srv/paws/bin:/srv/paws:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/srv/openrefine:/srv/julia/bin:./ffmpeg-6.1-amd64-static
./ffmpeg-6.1-amd64-static/ffmpeg

I got this.

So this implies, you must be having a folder named ffmpeg-6.1-amd64-static in your home folder.
{F42634524}

I am only able to find ffmpeg-6.1.1 folder and I added its path to environment variable still not able to get the video. Can you please guide me step by step of installing ffmpeg again? I installed it from this link:
https://www.ffmpeg.org/download.html
Then extracted it and i got files on my laptop and then moved them to Local Disc C and then finally went to ffmpeg-6.1.1 copied its path added to environment variable right? Anything else we had to do?

In T358412#9629431, @DevJames1 wrote:

In T358412#9629412, @MahimaSinghal wrote:

In T358412#9629375, @Mitumoni_kalita wrote:

I have tried implementing bar-chart-race locally on my machine as well as also tried on PAWS as one of the applicant advised above , but unable to play the video. Can anyone here help me with this issue and rectify my error?
@Ederporto

You will have to return the video from the function, and then when you will call the function, video will display.

Videos don't need to be returned, with the function bcr.bar_chart_race(…), the video is created automatically in the current directory

In T358412#9629390, @DevJames1 wrote:

In T358412#9629375, @Mitumoni_kalita wrote:

I have tried implementing bar-chart-race locally on my machine as well as also tried on PAWS as one of the applicant advised above , but unable to play the video. Can anyone here help me with this issue and rectify my error?
@Ederporto

When you play video what is the error. Does it play but shows gibberish?
Can you provide more info

In T358412#9617662, @ElvisGicharu wrote:

In T358412#9614248, @Abishek_Das wrote:

Hello everyone, I am also an Outreachy applicant for 2024.

Today, I discovered the message on Phabricator; however, I initially assumed that all discussions were taking place in the Zulip channel. Consequently, I didn't check the Phabricator comments section.

To keep it concise, I'd like to address how to make FFmpeg work on the PAWS Jupyter Notebook for the task "Create a tool for informative infographics from structured information from Wikimedia projects - Task A."

The reason FFmpeg isn't functioning on the PAWS Jupyter Notebook is that we need to download and add FFmpeg Static Builds from (https://johnvansickle.com/ffmpeg/) to the same folder where we have the code.

Here's a step-by-step guide (So, you don't have to go through the trouble of downloading from https://johnvansickle.com/ffmpeg/):

Note: Before you do the step mentioned in point (a), make sure all the steps, i.e., b, c, d, and e, are done first.

a) I've attached code that you can add to your Jupyter Notebook cell (Same notebook where you have your code to generate the bar chart race). Run this code to resolve the FFmpeg issue.

# Download a static FFmpeg build and add it to PATH.
%run 'util/load-ffmpeg.ipynb'
print('Done!')

b) Prior to running the code mentioned in point (a), add/upload the "util" folder to your PAWS. I've included the folder below.

util.zip864 BDownload

(You, have to unzip it after downloading)

c) The purpose of the "util" folder is to automatically add the FFmpeg Static Build File (which is a folder) to your PAWS when you run the provided code mentioned in point (a).

d) Ensure that the filename in bcr.bar_chart_race() has a ".mp4" extension.

e) After completing these steps, you can run your respective code, which is the code for generating the bar chart race.

Note:

a) You might encounter a warning / Error (Which again doesn't appear when I run my code locally and only sometimes appears on my PAWS Jupyter Notebook), as shown in the attached screenshot. However, this is not an issue, as the video file will be generated in the PAWS folder after running your code. You can then download the bar chart race video and watch the video(as shown the screenshot below).

b) If your code works correctly locally, it should generally (90%-99% of the time) work on the PAWS online Jupyter Notebook.

c) The warning or error screenshot I provided may or may not appear (Which happens to me only on PAWS), so be mindful of that.

d) Ensure that the filename in bcr.bar_chart_race() has a ".mp4" extension, as the ".html" filename won't appear on PAWS. But, Again, the .html works locally.

e) Why the .html doesn't appear on PAWS, I have no idea about it, and I have still not looked for a solution related to .html since the .mp4 file is generated on PAWS without any issue.

f) All the things I have mentioned on how to solve the issue related to FFmpeg were taken from various documentation like Matplotlib 3.8.3 documentation and, of course, my favorite stack overflow (So, thanks to the Devs on Stack Overflow).

Thanks for this