Python Regular Expressions -part #17 - Look arounds Variable Width Assertion

In this video series, we will be tackling Python Regular Expressions.

This video goes over:
1) Limitations of look behinds
2) How to do deal with variable width assertion

Don't forget to comment on what you would like to see.
Thank you for stopping by =).

Code to Python Regular Expressions series can be found at my github:

[AbhijeetBhagat]

Awesome course I learned more than I ever learned in college. Took 2 weeks to complete. I have gained huge confidence in regex because of your course. Thank you! Thank you!.

[Hari-xflv]

This series of lecture about re module was tremendous with great clarity.Thank you so much:)

[robmonkriedlinger]

Thank you so much for this course - Massively useful - I was able to go through it on a Sunday morning while it gently rained. I went from Zero to getting a job done that I had no clue how to start. I highly recommend people taking the time to learn this! Clean - Clear - Focused - instantly actionable!!

[nagaveenahebbar]

Thank you for this wonderful video series. I have put your video link in my Reddit account. So that many students get benefited by this

[hakancuzdan]

I can't thank you enough! You make the world a better place :)

[bogi]

Thank you for this great tutorial for RegEx.

[rickhehe]

GREAT course, thanks a lot!. BTW It took me about month to complete the entire course. Procrastination is killing me...

[Memex]

Fantastically informative video series, thanks for the help!

[Tauseef]

Finally!! some one who covered almost all topic in re . Thanks a lot (Y) . I would like to see Videos on REST API .

[farbor]

Thank you very much for your all videos, it helped a lot

[seriousbhai]

Amazing detailed lectures on Regular expression, Many thanks

[hakancuzdan]

Could you explain the raw strings vs regular strings a bit more in detail?


When i made a search, i found the following unfamiliar topics
worth mentioning in detail:


ASCII character set used by Python to represent the characters in a regular/raw string.
Numeric Escape Sequences (e.g. \0x0A, \0x09 etc)


REGULAR STRINGS:
\ character and escape sequences (e.g. \n, \t, \r etc)


Evaluation of regular strings by Python
Passing a regular string to re methods:
(Step 1) Python evaluation
(Step 2) the method's evaluation of the outcome of (step 1)
RegEx anchors (e.g. \b, \B, ^ and $)
RegEx character classes (e.g. \s, \d, \w, \D etc)
Metacharacters (e.g. [, ], ., <, > etc)
Python's Special Characters (e.g. \n, \r, \t etc)
The difference between evaluating vs. printing a regular string (i.e. '\n' vs print('\n')


RAW STRINGS:
Evaluation of raw strings by Python
Passing a raw string to re methods:
(Step 1) Python evaluation
(Step 2) the method's evaluation of the outcome of (step 1)
RegEx anchors (e.g. \b, \B, ^ and $)
RegEx character classes (e.g. \s, \d, \w, \D etc)
Metacharacters (e.g. [, ], ., <, > etc)
Python's Special Characters (e.g. \n, \r, \t etc)
The difference between evaluating vs. printing a raw string (i.e. r'\n' vs print('\n'))


This would be a good addition to your video set. I thank You for the effort!

[anirvansen]

thank you for the series. learnt a lot

[priyabratasaha]

Love ur videos.
Looking forward to see videos on deep learning and computer vision

[midhileshmomidi]

I was thinking this course should be put in Python official Documentation website so that everyone will understand much more efficiently

What a course !!!

After this course I solved all the basic and medium questions of Hackerrank


Please make videos on
1)OOPS
2)Decorators
3)Generators
4)Collections

Thank you very much

[АртёмЕфимов-он]

Hi! Great course. Very helpful. What about recursive regex?
Would you touch on this topic?
Thanks a lot!

[ritugoyal]

Hey Moondra, The explanation in all the videos cleared my doubts thanks much for that . Please make the videos on Pandas as well .

[imranshaikh-vyke]

make more videos on different python modules
your videos are really helpful

[nli]

Love love love your videos. Perhaps something on xpath?

[bhavitavyashrivastava]

Very Nice Video put up together
Just wanted to know can i clean records using re and feed to spark for processing
Sample Records :1, "Goroka", "Goroka", "Papua New Guinea", "GKA", "AYGA", -6.081689, 145.391881, 5282, 10, "U", "Pacific/Port_Moresby"
2, "Madang", "Madang", "Papua New Guinea", "MAG", "AYMD", -5.207083, 145.7887, 20, 10, "U", "Pacific/Port_Moresby"
3, "Mount Hagen", "Mount Hagen", "Papua New Guinea", "HGU", "AYMH", -5.826789, 144.295861, 5388, 10, "U", "Pacific/Port_Moresby"
4, "Nadzab", "Nadzab", "Papua New Guinea", "LAE", "AYNZ", -6.569828, 146.726242, 239, 10, "U", "Pacific/Port_Moresby"
5, "Port Moresby Jacksons Intl", "Port Moresby", "Papua New Guinea", "POM", "AYPY", -9.443383, 147.22005, 146, 10, "U", "Pacific/Port_Moresby"
6, "Wewak Intl", "Wewak", "Papua New Guinea", "WWK", "AYWK", -3.583828, 143.669186, 19, 10, "U", "Pacific/Port_Moresby"
7, "Narsarsuaq", "Narssarssuaq", "Greenland", "UAK", "BGBW", 61.160517, -45.425978, 112, -3, "E", "America/Godthab"






I want to remove quotation marks using regex