Benchpress | Easy Benchmarking with PowerShell | Performance Testing library

I have a bit of an issue with my code here. I'm trying to build a program that generates a new workout routine every day. It should pull from the same list of workouts and create a new list of what the user will use that day. When I run the program, it returns a list of the same item repeated 4 times, when it should be a list of 4 unique items. I am quite new to Python and programming, but I can't seem to find the solution anywhere. I would greatly appreciate any help or advice. How can I get 4 random items from a list, append them to a new list, and have none repeating?

I'm running some fairly simple benchmarks with the benchpress library. I've been using the bench :: Int -> IO a -> IO () interface. However, it seems like if I run a given function n times, all runs after the first are extremely fast.

As a simple example, bench 1 (seq (sum [1..100000]) (return ())) might take 10 or so seconds. However, bench 5 (seq (sum [1..100000]) (return ())) will produce a report like this:

I'm trying to pass the text of a tableViewCell into another VC and use that text to determine a displayed image , but regardless of what I do it only ever displays the text and image of the last cell. Here is my code, any help would be massively appreciated.

import UIKit

class TheExerciseLibrary: UIViewController, UITableViewDataSource, UITableViewDelegate {

Let's say I have some arrays:

I am trying to generate denseflow for ucf101 dataset but I keep getting the following error:

['ApplyEyeMakeup', 'ApplyLipstick', 'Archery', 'BabyCrawling', 'BalanceBeam', 'BandMarching', 'BaseballPitch', 'Basketball', 'BasketballDunk', 'BenchPress', 'Biking', 'Billiards', 'BlowDryHair', 'BlowingCandles', 'BodyWeightSquats', 'Bowling', 'BoxingPunchingBag', 'BoxingSpeedBag', 'BreastStroke', 'BrushingTeeth', 'CleanAndJerk', 'CliffDiving', 'CricketBowling', 'CricketShot', 'CuttingInKitchen', 'Diving', 'Drumming', 'Fencing', 'FieldHockeyPenalty', 'FloorGymnastics', 'FrisbeeCatch', 'FrontCrawl', 'GolfSwing', 'Haircut', 'Hammering', 'HammerThrow', 'HandstandPushups', 'HandstandWalking', 'HeadMassage', 'HighJump', 'HorseRace', 'HorseRiding', 'HulaHoop', 'IceDancing', 'JavelinThrow', 'JugglingBalls', 'JumpingJack', 'JumpRope', 'Kayaking', 'Knitting', 'LongJump', 'Lunges', 'MilitaryParade', 'Mixing', 'MoppingFloor', 'Nunchucks', 'ParallelBars', 'PizzaTossing', 'PlayingCello', 'PlayingDaf', 'PlayingDhol', 'PlayingFlute', 'PlayingGuitar', 'PlayingPiano', 'PlayingSitar', 'PlayingTabla', 'PlayingViolin', 'PoleVault', 'PommelHorse', 'PullUps', 'Punch', 'PushUps', 'Rafting', 'RockClimbingIndoor', 'RopeClimbing', 'Rowing', 'SalsaSpin', 'ShavingBeard', 'Shotput', 'SkateBoarding', 'Skiing', 'Skijet', 'SkyDiving', 'SoccerJuggling', 'SoccerPenalty', 'StillRings', 'SumoWrestling', 'Surfing', 'Swing', 'TableTennisShot', 'TaiChi', 'TennisSwing', 'ThrowDiscus', 'TrampolineJumping', 'Typing', 'UnevenBars', 'VolleyballSpiking', 'WalkingWithDog', 'WallPushups', 'WritingOnBoard', 'YoYo'] find 13320 videos. get videos list done! Traceback (most recent call last):

File "", line 1, in runfile('D:/Clones/py-denseflow-master/denseflow.py', wdir='D:/Clones/py-denseflow-master')

File "C:\Users\sancy\Anaconda3\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 704, in runfile execfile(filename, namespace)

File "C:\Users\sancy\Anaconda3\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 108, in execfile exec(compile(f.read(), filename, 'exec'), namespace)

File "D:/Clones/py-denseflow-master/denseflow.py", line 186, in pool.map(dense_flow,zip(video_list,flows_dirs,[step]*len(video_list),[bound]*len(video_list)))

File "C:\Users\sancy\Anaconda3\lib\multiprocessing\pool.py", line 290, in map return self._map_async(func, iterable, mapstar, chunksize).get()

File "C:\Users\sancy\Anaconda3\lib\multiprocessing\pool.py", line 683, in get raise self._value

NameError: name 'videos_root' is not defined

How do I resolve this?

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I have written some python code for extracting two frames from a video file using cv2. I have tested my code and it works for one video file.

However, I have a folder with hundreds of video files and I would like to extract two frames from all the videos in that folder. Is there a method of doing this for all the files in a folder? Perhaps using the os module or something similar?

My code is below for reference:

I have looked at similar questions but none of the solutions seem to be working for me and this has stumped me for 2 days now.

The error seems to be coming from passing this.props.navigate through to exerciseList.js however everything I have tried doesn't work. So any advice would be very much appreciated. The error occurs when I click through exerciseList.js to the individually rendered .

Error message screenshot here

Error Message:

First, i am having trouble understanding this problem so apologies for any confusion when explaining it.

I am currently making a gym workout routine generator which will randomly pull a certain number (specified by me) of exercises for certain msucle groups (also specified by me). I have an array called array, which looks like this;

l would like to make histogram (bars). l have a pair of arrays :

1) classes_1, proba_1 2) classes_2, proba_2 each array has 101 elements. classes_1/classes_2 are strings (x coordinates) and proba_1, proba_2 are float.

My purpose :

make in one plot bar histogram for (classes_1, proba_1) and (classes_2, proba_2)

Problem : classes_2 and classes_1 both contains 101 elements. They have the same elements but in different order such that :