what if you want to access the key of the value?

Hey Osama, Thank you for reaching out! I believe there is no as straightforward way to get the key of a dictionary given a value. I suggest you go through the Python documentation, study the operations that the dictionary data type supports, and try to implement a function that does what you need. Kind regards, 365 Hristina

Hi, for dictionary in dictionary case ie when i input: 1) countries['France'] or countries["France"],i could retrieve the value of the dictionary 2) however when i want to extract the value of the nested dictionary, value['Capital'] does not work and it needs to be value["Capital"], may i understand why? many thanks!

Hey Chan, Thank you for reaching out! In general, single and double quotation marks serve the same purpose in Python, namely, to define a string. They can be used interchangeably as in the example below: However, when quotation marks are used more than once in an expression, they need to be distinguished from one another. Study the following example: Here, the single quotation marks denote the beginning of an f-string while the double quotation marks define the strings Capital and Language. In contrast, in the example below, the single quotation marks instead denote the beginning of an f-string while the double ones define the strings Capital and Language. Finally, the following code returns a syntax error since the f-string begins in position 1 and ends in position 2: Hope this helps! Kind regards, 365 Hristina