mrna_codechallenge

Processing mRNA Sequences - Code Challenge 2021

• Download folder at https://github.com/fmillama/mrna_codechallenge/tree/master
• Execute main.py on terminal to run processor. Python 3 is required.
• Terminal will demand inputs:
  • First:
    • Select 1 for a local .txt file. Then, enter filepath. An invalid extension or a path not found in the local directory will raise an exception.
    • Select 2 for a string. Then, enter lines of text followed by a blank line to be processed as a string.
  • Second:
    • Select 1 to process all input and print a single list of genes or a single error message.
    • Select 2 to process all input and print each gene and error message in order until the end of file.
    • Select 3 to print the first gene or error message in the file. Then press enter to print each subsequent gene or error message.
• For Challenge 1 select string input, provide string and lastly select 1 to return a list of genes or a single error message.
• Possible error messages:
  • Characters that are not A, C, G or U will not be processed. Returns invalid character with line and column position.
  • Sequence length of valid characters must be divisible by 3. Returns an unfinished codon at the end of the file.
  • Final codon must match stop codons UAG, UGA or UAA. Returns an unfinished gene at the end of the file.
• The processor will print warnings regardless of mode:
  • Input between the a comment character '>' and the end of line will not be processed.
  • Comments are printed for clarity.
  • Reports on unfinished genes or codons once a comment line is reached. These elements will not be reset.
  • Reports on skipped single codon genes.
• Execute test_genchal.py to run tests.