extract a list within a string sequence
up vote
2
down vote
favorite
I have a sequence of string which has a python list within it. It looks like this
"['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
How can I can retrieve the string enclosed by as the list data type of python?
python list
asked Nov 20 at 11:44
Abhijeet Parida
869
add a comment |
up vote
2
down vote
favorite
I have a sequence of string which has a python list within it. It looks like this
"['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
How can I can retrieve the string enclosed by as the list data type of python?
python list
asked Nov 20 at 11:44
Abhijeet Parida
869
4
Possible duplicate of Convert string representation of list to list
– Aquarthur
Nov 20 at 11:47
3
Possible duplicate of How to conver String to List withou using eval(Python)
– Netwave
Nov 20 at 11:47
Is it sure that the string only contains the list or may it contain something else too? I.e., is the following possible:"This is my list ['a', 'b', 'c']. It's a beautiful list.?
– Tobias Brösamle
Nov 20 at 11:48
add a comment |
up vote
2
down vote
favorite
up vote
2
down vote
favorite
I have a sequence of string which has a python list within it. It looks like this
"['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
How can I can retrieve the string enclosed by as the list data type of python?
python list
asked Nov 20 at 11:44
Abhijeet Parida
869
I have a sequence of string which has a python list within it. It looks like this
"['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
How can I can retrieve the string enclosed by as the list data type of python?
python list
python list
asked Nov 20 at 11:44
Abhijeet Parida
869
asked Nov 20 at 11:44
Abhijeet Parida
869
asked Nov 20 at 11:44
Abhijeet Parida
869
asked Nov 20 at 11:44
Abhijeet Parida
869
asked Nov 20 at 11:44
Abhijeet Parida
869
869
4
Possible duplicate of Convert string representation of list to list
– Aquarthur
Nov 20 at 11:47
3
Possible duplicate of How to conver String to List withou using eval(Python)
– Netwave
Nov 20 at 11:47
Is it sure that the string only contains the list or may it contain something else too? I.e., is the following possible:"This is my list ['a', 'b', 'c']. It's a beautiful list.?
– Tobias Brösamle
Nov 20 at 11:48
add a comment |
4
Possible duplicate of Convert string representation of list to list
– Aquarthur
Nov 20 at 11:47
3
Possible duplicate of How to conver String to List withou using eval(Python)
– Netwave
Nov 20 at 11:47
Is it sure that the string only contains the list or may it contain something else too? I.e., is the following possible:"This is my list ['a', 'b', 'c']. It's a beautiful list.?
– Tobias Brösamle
Nov 20 at 11:48
4
4
Possible duplicate of Convert string representation of list to list
– Aquarthur
Nov 20 at 11:47
Possible duplicate of Convert string representation of list to list
– Aquarthur
Nov 20 at 11:47
3
3
Possible duplicate of How to conver String to List withou using eval(Python)
– Netwave
Nov 20 at 11:47
Possible duplicate of How to conver String to List withou using eval(Python)
– Netwave
Nov 20 at 11:47
Is it sure that the string only contains the list or may it contain something else too? I.e., is the following possible:
"This is my list ['a', 'b', 'c']. It's a beautiful list.?– Tobias Brösamle
Nov 20 at 11:48
Is it sure that the string only contains the list or may it contain something else too? I.e., is the following possible:
"This is my list ['a', 'b', 'c']. It's a beautiful list.?– Tobias Brösamle
Nov 20 at 11:48
add a comment |
4 Answers
4
active
oldest
votes
up vote
2
down vote
Use the literal_eval function from the standard library:
>>> from ast import literal_eval
>>> literal_eval("['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']")
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
This is way more safe than using eval directly (source).
answered Nov 20 at 11:47
julienc
9,635105063
add a comment |
up vote
2
down vote
Use a regular expression to extract the list:
re.findall("'(.*?)'",st)
#['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
answered Nov 20 at 11:47
nixon
2,5051221
add a comment |
up vote
1
down vote
Use python's eval function to evaluate the string and get a list
>>> x = "['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
>>> eval(x)
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
>>> type(eval(x))
<class 'list'>
NOTE:
eval is dangerous in case you are exposing the code to open world such as a website or an api. eval executes in global namespace and hence could be dangerous.
Example:
eval(os.listdir()) gives all files and folder in working directory.
answered Nov 20 at 11:45
Vishnudev
998517
3
dont use eval, use ast.literal_eval instead
– Netwave
Nov 20 at 11:48
That answer is dangerous.
– Olivier Melançon
Nov 20 at 12:51
add a comment |
up vote
0
down vote
You can also achieve your desired result using string operations and slicing:
string = "['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
wordList = list(map(lambda elem: elem.replace(''','') ,string[1:-1].split(', ')))
print(wordList)
Output:
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
answered Nov 20 at 14:07
Vasilis G.
3,1042722
add a comment |
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4 Answers
4
active
oldest
votes
4 Answers
4
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
Use the literal_eval function from the standard library:
>>> from ast import literal_eval
>>> literal_eval("['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']")
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
This is way more safe than using eval directly (source).
answered Nov 20 at 11:47
julienc
9,635105063
add a comment |
up vote
2
down vote
Use the literal_eval function from the standard library:
>>> from ast import literal_eval
>>> literal_eval("['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']")
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
This is way more safe than using eval directly (source).
answered Nov 20 at 11:47
julienc
9,635105063
add a comment |
up vote
2
down vote
up vote
2
down vote
Use the literal_eval function from the standard library:
>>> from ast import literal_eval
>>> literal_eval("['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']")
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
This is way more safe than using eval directly (source).
answered Nov 20 at 11:47
julienc
9,635105063
Use the literal_eval function from the standard library:
>>> from ast import literal_eval
>>> literal_eval("['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']")
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
This is way more safe than using eval directly (source).
answered Nov 20 at 11:47
julienc
9,635105063
answered Nov 20 at 11:47
julienc
9,635105063
answered Nov 20 at 11:47
julienc
9,635105063
answered Nov 20 at 11:47
julienc
9,635105063
9,635105063
add a comment |
add a comment |
up vote
2
down vote
Use a regular expression to extract the list:
re.findall("'(.*?)'",st)
#['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
answered Nov 20 at 11:47
nixon
2,5051221
add a comment |
up vote
2
down vote
Use a regular expression to extract the list:
re.findall("'(.*?)'",st)
#['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
answered Nov 20 at 11:47
nixon
2,5051221
add a comment |
up vote
2
down vote
up vote
2
down vote
Use a regular expression to extract the list:
re.findall("'(.*?)'",st)
#['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
answered Nov 20 at 11:47
nixon
2,5051221
Use a regular expression to extract the list:
re.findall("'(.*?)'",st)
#['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
answered Nov 20 at 11:47
nixon
2,5051221
edited Nov 20 at 11:53
answered Nov 20 at 11:47
nixon
2,5051221
answered Nov 20 at 11:47
nixon
2,5051221
answered Nov 20 at 11:47
nixon
2,5051221
2,5051221
add a comment |
add a comment |
up vote
1
down vote
Use python's eval function to evaluate the string and get a list
>>> x = "['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
>>> eval(x)
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
>>> type(eval(x))
<class 'list'>
NOTE:
eval is dangerous in case you are exposing the code to open world such as a website or an api. eval executes in global namespace and hence could be dangerous.
Example:
eval(os.listdir()) gives all files and folder in working directory.
answered Nov 20 at 11:45
Vishnudev
998517
3
dont use eval, use ast.literal_eval instead
– Netwave
Nov 20 at 11:48
That answer is dangerous.
– Olivier Melançon
Nov 20 at 12:51
add a comment |
up vote
1
down vote
Use python's eval function to evaluate the string and get a list
>>> x = "['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
>>> eval(x)
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
>>> type(eval(x))
<class 'list'>
NOTE:
eval is dangerous in case you are exposing the code to open world such as a website or an api. eval executes in global namespace and hence could be dangerous.
Example:
eval(os.listdir()) gives all files and folder in working directory.
answered Nov 20 at 11:45
Vishnudev
998517
3
dont use eval, use ast.literal_eval instead
– Netwave
Nov 20 at 11:48
That answer is dangerous.
– Olivier Melançon
Nov 20 at 12:51
add a comment |
up vote
1
down vote
up vote
1
down vote
Use python's eval function to evaluate the string and get a list
>>> x = "['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
>>> eval(x)
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
>>> type(eval(x))
<class 'list'>
NOTE:
eval is dangerous in case you are exposing the code to open world such as a website or an api. eval executes in global namespace and hence could be dangerous.
Example:
eval(os.listdir()) gives all files and folder in working directory.
answered Nov 20 at 11:45
Vishnudev
998517
Use python's eval function to evaluate the string and get a list
>>> x = "['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
>>> eval(x)
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
>>> type(eval(x))
<class 'list'>
NOTE:
eval is dangerous in case you are exposing the code to open world such as a website or an api. eval executes in global namespace and hence could be dangerous.
Example:
eval(os.listdir()) gives all files and folder in working directory.
answered Nov 20 at 11:45
Vishnudev
998517
edited Nov 20 at 14:25
answered Nov 20 at 11:45
Vishnudev
998517
answered Nov 20 at 11:45
Vishnudev
998517
answered Nov 20 at 11:45
Vishnudev
998517
998517
3
dont use eval, use ast.literal_eval instead
– Netwave
Nov 20 at 11:48
That answer is dangerous.
– Olivier Melançon
Nov 20 at 12:51
add a comment |
3
dont use eval, use ast.literal_eval instead
– Netwave
Nov 20 at 11:48
That answer is dangerous.
– Olivier Melançon
Nov 20 at 12:51
3
3
dont use eval, use ast.literal_eval instead
– Netwave
Nov 20 at 11:48
dont use eval, use ast.literal_eval instead
– Netwave
Nov 20 at 11:48
That answer is dangerous.
– Olivier Melançon
Nov 20 at 12:51
That answer is dangerous.
– Olivier Melançon
Nov 20 at 12:51
add a comment |
up vote
0
down vote
You can also achieve your desired result using string operations and slicing:
string = "['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
wordList = list(map(lambda elem: elem.replace(''','') ,string[1:-1].split(', ')))
print(wordList)
Output:
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
answered Nov 20 at 14:07
Vasilis G.
3,1042722
add a comment |
up vote
0
down vote
You can also achieve your desired result using string operations and slicing:
string = "['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
wordList = list(map(lambda elem: elem.replace(''','') ,string[1:-1].split(', ')))
print(wordList)
Output:
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
answered Nov 20 at 14:07
Vasilis G.
3,1042722
add a comment |
up vote
0
down vote
up vote
0
down vote
You can also achieve your desired result using string operations and slicing:
string = "['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
wordList = list(map(lambda elem: elem.replace(''','') ,string[1:-1].split(', ')))
print(wordList)
Output:
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
answered Nov 20 at 14:07
Vasilis G.
3,1042722
You can also achieve your desired result using string operations and slicing:
string = "['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']"
wordList = list(map(lambda elem: elem.replace(''','') ,string[1:-1].split(', ')))
print(wordList)
Output:
['How', 'Quebec', 'nationalists', 'see', 'province', 'nation', '1960s?']
answered Nov 20 at 14:07
Vasilis G.
3,1042722
edited Nov 20 at 15:51
answered Nov 20 at 14:07
Vasilis G.
3,1042722
answered Nov 20 at 14:07
Vasilis G.
3,1042722
answered Nov 20 at 14:07
Vasilis G.
3,1042722
3,1042722
add a comment |
add a comment |
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4
Possible duplicate of Convert string representation of list to list
– Aquarthur
Nov 20 at 11:47
3
Possible duplicate of How to conver String to List withou using eval(Python)
– Netwave
Nov 20 at 11:47
Is it sure that the string only contains the list or may it contain something else too? I.e., is the following possible:
"This is my list ['a', 'b', 'c']. It's a beautiful list.?– Tobias Brösamle
Nov 20 at 11:48