python - what is different loads, dumps vs read json file? -

i have simple json file 'stackoverflow.json" { "firstname": "stack", "lastname": "overflow" }

what different between 2 below functions:

def read_json_file_1():     open('stackoverflow.json') fs:         payload = ujson.loads(fs.read())         payload = ujson.dumps(payload)     return payload  def read_json_file_2():     open ('stackoverflow.json') fs:         return payload = fs.read() 

then use 'requests' module send post resquest payload 2 above funtions , works both.

thanks.

the 'loads' function takes json file , converts dictionary or list depending on exact json file. `dumps' take python data structure, , converts json.

so first function loading , validating json, converting python structure, , converting json before returning, whereas 2nd function reads content of file, no conversion or validation

the functions therefore equivalent if json valid - if there json errors 2 functions execute differently.if know file contains error free json 2 files should return equivalent output, if file contains error within json, first function fail relevant tracebacks etc, , 2nd function wont generate errors @ all. 1st function more error friendly, less efficient (since converts json -> python -> json). 2nd function more efficient less error friendly (i.e. wont fail if json broken).