Embark on a journey of knowledge! Take the quiz and earn valuable credits.
Take A QuizChallenge yourself and boost your learning! Start the quiz now to earn credits.
Take A QuizUnlock your potential! Begin the quiz, answer questions, and accumulate credits along the way.
Take A QuizGeneral Tech Bugs & Fixes 2 years ago
Posted on 16 Aug 2022, this text provides information on Bugs & Fixes related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
From the docs (https://docs.python.org/2/library/re.html#re.search), search is not returning True
or False
:
Scan through string looking for the first location where the regular expression pattern produces a match, and return a corresponding MatchObject instance. Return None if no position in the string matches the pattern; note that this is different from finding a zero-length match at some point in the string.
you are creating a new set
and assign it to x
here
x = x | set([4, 5, 6])
from here on y
is independent of x
(they are the names of different set
s).
on the other hand in-place assignment in your first example does not create a new set; it just modifies the current instance in
x |= set([4, 5, 6])
now y
still refers to the same set
as x
. you can see the difference by printing
print(id(x))
print(id(y))
before and after the assignments.
it may be instructive to visualize the difference on pythontutor.com.
everything i said above is valid for mutable objects (e.g. set
s). for immutable objects the in-place assignments behave just like the 'normal' assignments; i.e. for x
an int
: x += 1
is the same as x = x + 1
.
No matter what stage you're at in your education or career, TuteeHub will help you reach the next level that you're aiming for. Simply,Choose a subject/topic and get started in self-paced practice sessions to improve your knowledge and scores.
General Tech 10 Answers
General Tech 7 Answers
General Tech 3 Answers
General Tech 9 Answers
Ready to take your education and career to the next level? Register today and join our growing community of learners and professionals.
manpreet
Best Answer
2 years ago
I need find a string which already has special chars removed. So, I want to do is to find that string in a sentence and return the string with special chars. Ex:
string = France09
Sentence : i leaved in France'09.
now I did
re.search('France09',sentence)
, it will returnTrue
orFalse
. But I want to get the output asFrance'09
.Can any one help me.