convert array of strings inside of string into a python list

I've sent some form-data from my React client to my Django + DRF api.

inside of the form-data I have an attribute date_strings which is an array of date-time strings. i.e. ["date1", "date2", "date3"]

in order to send it to my Django api I converted the array of strings into a string using JSON.stringify

const myForm = new FormData();

myForm.set("date_strings", JSON.stringify(dateStrings));

in the create method of my serializer, I'd like to convert this data into a list.

 def create(self, validated_data):

    stringified_array = validated_data.pop('date_strings')

    // stringified_array: '["date1", "date2", "date3"]'

how can I convert an array of strings inside of a string into a python list?

edited Nov 20 '18 at 22:21

asked Nov 20 '18 at 21:41

Brooklin Myers

709

2

Possible duplicate of Parse JSON in Python

– mhodges
Nov 20 '18 at 21:43

I've tried using json.loads but it doesn't work. I think this is because this is an array and not formatted json

– Brooklin Myers
Nov 20 '18 at 21:46

2

Works just fine for me. Are you certain that your data is in the format posted above?

– mhodges
Nov 20 '18 at 21:50

I'll double check to confirm

– Brooklin Myers
Nov 20 '18 at 22:06

I think the problem is probably with your input, [", "name": "server.posts.serializers", "levelname": "INFO", "request_id": "none"} doesn't seem right to me...

– Nathan
Nov 20 '18 at 22:08

|
show 2 more comments

I've sent some form-data from my React client to my Django + DRF api.

inside of the form-data I have an attribute date_strings which is an array of date-time strings. i.e. ["date1", "date2", "date3"]

in order to send it to my Django api I converted the array of strings into a string using JSON.stringify

const myForm = new FormData();

myForm.set("date_strings", JSON.stringify(dateStrings));

in the create method of my serializer, I'd like to convert this data into a list.

 def create(self, validated_data):

    stringified_array = validated_data.pop('date_strings')

    // stringified_array: '["date1", "date2", "date3"]'

how can I convert an array of strings inside of a string into a python list?

edited Nov 20 '18 at 22:21

asked Nov 20 '18 at 21:41

Brooklin Myers

709

2

Possible duplicate of Parse JSON in Python

– mhodges
Nov 20 '18 at 21:43

I've tried using json.loads but it doesn't work. I think this is because this is an array and not formatted json

– Brooklin Myers
Nov 20 '18 at 21:46

2

Works just fine for me. Are you certain that your data is in the format posted above?

– mhodges
Nov 20 '18 at 21:50

I'll double check to confirm

– Brooklin Myers
Nov 20 '18 at 22:06

I think the problem is probably with your input, [", "name": "server.posts.serializers", "levelname": "INFO", "request_id": "none"} doesn't seem right to me...

– Nathan
Nov 20 '18 at 22:08

|
show 2 more comments

I've sent some form-data from my React client to my Django + DRF api.

inside of the form-data I have an attribute date_strings which is an array of date-time strings. i.e. ["date1", "date2", "date3"]

in order to send it to my Django api I converted the array of strings into a string using JSON.stringify

const myForm = new FormData();

myForm.set("date_strings", JSON.stringify(dateStrings));

in the create method of my serializer, I'd like to convert this data into a list.

 def create(self, validated_data):

    stringified_array = validated_data.pop('date_strings')

    // stringified_array: '["date1", "date2", "date3"]'

how can I convert an array of strings inside of a string into a python list?

edited Nov 20 '18 at 22:21

asked Nov 20 '18 at 21:41

Brooklin Myers

709

I've sent some form-data from my React client to my Django + DRF api.

inside of the form-data I have an attribute date_strings which is an array of date-time strings. i.e. ["date1", "date2", "date3"]

in order to send it to my Django api I converted the array of strings into a string using JSON.stringify

const myForm = new FormData();

myForm.set("date_strings", JSON.stringify(dateStrings));

in the create method of my serializer, I'd like to convert this data into a list.

 def create(self, validated_data):

    stringified_array = validated_data.pop('date_strings')

    // stringified_array: '["date1", "date2", "date3"]'

how can I convert an array of strings inside of a string into a python list?

python json django parsing

edited Nov 20 '18 at 22:21

asked Nov 20 '18 at 21:41

Brooklin Myers

709

edited Nov 20 '18 at 22:21

asked Nov 20 '18 at 21:41

Brooklin Myers

709

edited Nov 20 '18 at 22:21

asked Nov 20 '18 at 21:41

Brooklin Myers

709

asked Nov 20 '18 at 21:41

Brooklin Myers

709

asked Nov 20 '18 at 21:41

Brooklin Myers

709

2

Possible duplicate of Parse JSON in Python

– mhodges
Nov 20 '18 at 21:43

I've tried using json.loads but it doesn't work. I think this is because this is an array and not formatted json

– Brooklin Myers
Nov 20 '18 at 21:46

2

Works just fine for me. Are you certain that your data is in the format posted above?

– mhodges
Nov 20 '18 at 21:50

I'll double check to confirm

– Brooklin Myers
Nov 20 '18 at 22:06

I think the problem is probably with your input, [", "name": "server.posts.serializers", "levelname": "INFO", "request_id": "none"} doesn't seem right to me...

– Nathan
Nov 20 '18 at 22:08

|
show 2 more comments

2

Possible duplicate of Parse JSON in Python

– mhodges
Nov 20 '18 at 21:43

I've tried using json.loads but it doesn't work. I think this is because this is an array and not formatted json

– Brooklin Myers
Nov 20 '18 at 21:46

2

Works just fine for me. Are you certain that your data is in the format posted above?

– mhodges
Nov 20 '18 at 21:50

I'll double check to confirm

– Brooklin Myers
Nov 20 '18 at 22:06

I think the problem is probably with your input, [", "name": "server.posts.serializers", "levelname": "INFO", "request_id": "none"} doesn't seem right to me...

– Nathan
Nov 20 '18 at 22:08

Possible duplicate of Parse JSON in Python

– mhodges
Nov 20 '18 at 21:43

I've tried using json.loads but it doesn't work. I think this is because this is an array and not formatted json

– Brooklin Myers
Nov 20 '18 at 21:46

Works just fine for me. Are you certain that your data is in the format posted above?

– mhodges
Nov 20 '18 at 21:50

I'll double check to confirm

– Brooklin Myers
Nov 20 '18 at 22:06

I think the problem is probably with your input, [", "name": "server.posts.serializers", "levelname": "INFO", "request_id": "none"} doesn't seem right to me...

– Nathan
Nov 20 '18 at 22:08

|
show 2 more comments

1 Answer
1

active

oldest

votes

You can easily turn strings into lists using .split. However, you have to remove the outermost characters [" and "] because otherwise these will also be added to your list of strings.

stringified = '["date1", "date2", "date3"]'

unstringified = stringified[2:-2].split('", "')

returns

['date1', 'date2', 'date3']

A much better solution as mentioned by @mhodges

import json

stringified = '["date1", "date2", "date3"]'

unstringified = json.loads(stringified)

Which also outputs:

['date1', 'date2', 'date3']

edited Nov 20 '18 at 22:03

answered Nov 20 '18 at 21:56

Nathan

1,306518

Isn't he doing the json.loads() solution?

– Barmar
Nov 20 '18 at 22:12

This is the correct answer! I made a mistake, json.loads() works correctly. I tried using json.loads before, but I had a log below it so kept getting the message ["TypeError: must be str, not typen"]

– Brooklin Myers
Nov 20 '18 at 22:17

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

You can easily turn strings into lists using .split. However, you have to remove the outermost characters [" and "] because otherwise these will also be added to your list of strings.

stringified = '["date1", "date2", "date3"]'

unstringified = stringified[2:-2].split('", "')

returns

['date1', 'date2', 'date3']

A much better solution as mentioned by @mhodges

import json

stringified = '["date1", "date2", "date3"]'

unstringified = json.loads(stringified)

Which also outputs:

['date1', 'date2', 'date3']

edited Nov 20 '18 at 22:03

answered Nov 20 '18 at 21:56

Nathan

1,306518

Isn't he doing the json.loads() solution?

– Barmar
Nov 20 '18 at 22:12

This is the correct answer! I made a mistake, json.loads() works correctly. I tried using json.loads before, but I had a log below it so kept getting the message ["TypeError: must be str, not typen"]

– Brooklin Myers
Nov 20 '18 at 22:17

add a comment |

You can easily turn strings into lists using .split. However, you have to remove the outermost characters [" and "] because otherwise these will also be added to your list of strings.

stringified = '["date1", "date2", "date3"]'

unstringified = stringified[2:-2].split('", "')

returns

['date1', 'date2', 'date3']

A much better solution as mentioned by @mhodges

import json

stringified = '["date1", "date2", "date3"]'

unstringified = json.loads(stringified)

Which also outputs:

['date1', 'date2', 'date3']

edited Nov 20 '18 at 22:03

answered Nov 20 '18 at 21:56

Nathan

1,306518

Isn't he doing the json.loads() solution?

– Barmar
Nov 20 '18 at 22:12

This is the correct answer! I made a mistake, json.loads() works correctly. I tried using json.loads before, but I had a log below it so kept getting the message ["TypeError: must be str, not typen"]

– Brooklin Myers
Nov 20 '18 at 22:17

add a comment |

You can easily turn strings into lists using .split. However, you have to remove the outermost characters [" and "] because otherwise these will also be added to your list of strings.

stringified = '["date1", "date2", "date3"]'

unstringified = stringified[2:-2].split('", "')

returns

['date1', 'date2', 'date3']

A much better solution as mentioned by @mhodges

import json

stringified = '["date1", "date2", "date3"]'

unstringified = json.loads(stringified)

Which also outputs:

['date1', 'date2', 'date3']

edited Nov 20 '18 at 22:03

answered Nov 20 '18 at 21:56

Nathan

1,306518

You can easily turn strings into lists using .split. However, you have to remove the outermost characters [" and "] because otherwise these will also be added to your list of strings.

stringified = '["date1", "date2", "date3"]'

unstringified = stringified[2:-2].split('", "')

returns

['date1', 'date2', 'date3']

A much better solution as mentioned by @mhodges

import json

stringified = '["date1", "date2", "date3"]'

unstringified = json.loads(stringified)

Which also outputs:

['date1', 'date2', 'date3']

edited Nov 20 '18 at 22:03

answered Nov 20 '18 at 21:56

Nathan

1,306518

edited Nov 20 '18 at 22:03

answered Nov 20 '18 at 21:56

Nathan

1,306518

answered Nov 20 '18 at 21:56

Nathan

1,306518

answered Nov 20 '18 at 21:56

Nathan

1,306518

Isn't he doing the json.loads() solution?

– Barmar
Nov 20 '18 at 22:12

This is the correct answer! I made a mistake, json.loads() works correctly. I tried using json.loads before, but I had a log below it so kept getting the message ["TypeError: must be str, not typen"]

– Brooklin Myers
Nov 20 '18 at 22:17

add a comment |

Isn't he doing the json.loads() solution?

– Barmar
Nov 20 '18 at 22:12

This is the correct answer! I made a mistake, json.loads() works correctly. I tried using json.loads before, but I had a log below it so kept getting the message ["TypeError: must be str, not typen"]

– Brooklin Myers
Nov 20 '18 at 22:17

Isn't he doing the json.loads() solution?

– Barmar
Nov 20 '18 at 22:12

This is the correct answer! I made a mistake, json.loads() works correctly. I tried using json.loads before, but I had a log below it so kept getting the message ["TypeError: must be str, not typen"]

– Brooklin Myers
Nov 20 '18 at 22:17

add a comment |

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