Home
Q&A
Education
Technology
Credit
General
Health
Insurance
Questions
Ask a Question
How do I check if a list is empty?
Home
Education
How do I check if a list is empty?
asked
Jan 24, 2022
in
Education
by
JackTerrance
suppose I have passed : list=[] How can I check if a list is empty or not? Select the correct answer from above options
list
python
python-faq
1
Answer
0
votes
answered
Jan 24, 2022
by
JackTerrance
Best answer
@Anvi, following is an implicit way of checking if a list is empty or not: if not list: print("empty list")
Related questions
0
votes
Q: How do I get the number of elements in a list in Python?
How can I get the number of elements of a list? Ex- items = [] items.append("one") items.append("two") items.append("three") Select the correct answer from above options...
asked
Jan 24, 2022
in
Education
by
JackTerrance
python
python-faq
list
0
votes
Q: How do I remove an element from a list by index in Python?
How to remove an element from a list by index in Python, I tried list.remove method but it search the list and ... How can I do this? Select the correct answer from above options...
asked
Jan 22, 2022
in
Education
by
JackTerrance
python
python-faq
list
0
votes
Q: How do you remove duplicates from a list whilst preserving order?
Is there a built-in that removes duplicates from a list in Python, whilst preserving order? I know that I can ... idiom if possible. Select the correct answer from above options...
asked
Jan 26, 2022
in
Education
by
JackTerrance
python
list
duplicate
python-faq
python-programming
0
votes
Q: How can I count the occurrences of a list item?
I have an item and I want to count it's occurrence in a list, How can I do that in Python? Select the correct answer from above options...
asked
Jan 22, 2022
in
Education
by
JackTerrance
list
count
python
python-faq
0
votes
Q: How to randomly select an item from a list?
I have a list: foo= ['q'' , 'w' , 'e' , 'r' , 't' , 'y'] I want to retrieve an item randomly from this list, How can I do it in python? Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
python
list
python-faq
0
votes
Q: How to make a flat list out of list of lists
Is there any shortcut to make a simple list out of a complex one in python? I already performed for a loop but ... help me with it. Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
python
python-faq
list
multidimensional-array
0
votes
Q: Python join: why is it string.join(list) instead of list.join(string)?
I am confused about the usage of string.join(list) instead of list.join(string), for instance see this code: ... reason behind this? Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
python
list
string
python-faq
0
votes
Q: Finding the index of an item given a list containing it in Python
How can someone get a index (1) in Python for a list ["qwe", "asd", "zxc"] and an item "asd" in the list? Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
python
python-faq
list
index
0
votes
Q: Understanding slice notation
I think the slice notation are sort of powerful but I don't know much about it, So can anyone give me a ... Python's slice notation? Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
slice
iterable
python-faq
list
python
0
votes
Q: How do I sort a list of dictionaries by a value of the dictionary?
I want each item to be sorted by a specific property value from a list of dictionaries I have. Take the ... When sorted by name Select the correct answer from above options...
asked
Jan 20, 2022
in
Education
by
JackTerrance
python
list
sorting
dictionary
data-structures
0
votes
Q: How do I check if a string is a number (float)?
Can someone tell me a method to check how can I represent a string as a number in Python? I am using this ... please help me with it. Select the correct answer from above options...
asked
Jan 22, 2022
in
Education
by
JackTerrance
python
casting
type-conversion
python-faq
0
votes
Q: How do I check what version of Python is running my script?
How to check which Python version is interpreting my script? Select the correct answer from above options...
asked
Jan 23, 2022
in
Education
by
JackTerrance
python-faq
python
interpreter
script
0
votes
Q: How do I check whether a file exists without exceptions?
Can we check the existence of a file without using try statement in Python? Select the correct answer from above options...
asked
Jan 21, 2022
in
Education
by
JackTerrance
file-exist
python
python-faq
0
votes
Q: How can I reverse a list in Python?
How can I do the following in Python? array = [0, 10, 20, 40] for (i = array.length() - 1; i >= ... but from the end to the beginning. Select the correct answer from above options...
asked
Feb 4, 2022
in
Education
by
JackTerrance
python
list
0
votes
Q: How to return dictionary keys as a list in Python?
In Python 2.7, I could get dictionary keys, values, or items as a list: >>> newdict = {1:0, 2:0, 3:0} ... to return a list in Python 3? Select the correct answer from above options...
asked
Feb 4, 2022
in
Education
by
JackTerrance
python
list
dictionary
...
