I need to write a python code. These are the instructions: "Write a module, complement.py$,$ with a function, complement, that returns the complement of a DNA string. Also provide a function, revComplement that takes a DNA sequence as string input and returns the reverse complement of the sequence as a string. Recall that the valid alphabet is $\{$A$,$ C$,$ T$,$ G$\}$ and that A$-$T and G$-$C are complements. A reverse complement is found by reversing the input string and replacing every nucleotide with its complement. This means that your revComplement method should use your complement method internally rather than duplicating code. Your methods should do appropriate error checking and return an error message as appropriate. Test your functions with input from the user. For example, if your input is ACTG, your complement should be TGAC and your reverse complement should be CAGT." This is what I have so far but my understanding of functions is severely limited and this is not including the reverse complement function yet bc I was trying to just get the complement one done first: def complement$($dna$)$: complement$\_$dna $=\{\text{'}$A$\text{'}$:$\text{'}$T$\text{'},\text{'}$C$\text{'}$:$\text{'}$G$\text{'},\text{'}$G$\text{'}$:$\text{'}$C$\text{'},\text{'}$T$\text{'}$:$\text{'}$A$\text{'}\}$ #convert to uppercase dna $=$ dna.upper$()$ bases $=$ list$($dna$)$ letters $=\text{'}\text{'}$ for x in bases: if x in complement$\_$dna: letters $=$ letters $+$ dna$[$x$]$ return $\text{'}\text{'}.$join$($letters$)$ dna $=$ str$($input$("$Enter the DNA string: $"))$ print$("$The complement is$",$complement$($dna$),".")$ Of course, my code can be completely ignored if it is not on the right track what so ever. Any help would be appreciated!!You should not be using any built in modules that calculate variance$/$standard deviation

for you, you need to code this on your own.

In order to make your program as modular as possible, however, you should define your

own functions to carry out the computation. These functions should be:

sorted$\_$list $-$ takes a list of integers as input and returns them in sorted order

compute$\_$mean $-$ takes a list of integers as input and returns the mean $($average$)$

of the list

compute$\_$variance $-$ takes a list of integers as input and returns the variance of

the list. $($Note that this method can call the computeMean method.$)$

compute$\_$standard$\_$dev $-$ takes the variance as input and returns the standard

deviation $($just the square root of variance$).$

Due Date

This assignment is due at $11$:$59$pm on $1-22-2021.$ Submit via Canvas; create a zip file with

all your files in it$.$ It should be labeled lastNameFirstInitial$\_$A$3.$ Please make sure to include

all the required files $($README$,$ source files$).$

Grading

Assignments will be graded on correctness according to the prompt, adherence to style,

and the inclusion of meaningful comments.