I need a code for this question using PYTHON only.

a) Frequency analysis: write a program in C++ or python to compute the relative frequency of all letters A...Z in the ciphertext given above. b) In order to decrypt the ciphertext look at the table 1.1 below, "Frequency" column and substitute the letters with a closer number which you obtained in part a. Note that the text is relatively short and that the letter frequencies in it might not perfectly align with that of the general English language from the table. Try to substitute letters representing its letter frequencies and then try to read the text you obtained and make changes. Please write a detailed report of what you did in each step. Frequency Analysis): The ciphertext below was encrypted using a substitution cipher. In your favorite language (in C++ or Python) crack encrypted text below using frequency analysis Table 1.1 Relative letter frequencies of the English language