def creates_scores_dict():
    scores_string = """!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~"""
    scores_dict = {}
    for i,symbol in enumerate(scores_string):
        scores_dict[symbol] = i + 1
    return scores_dict

scores_dict = creates_scores_dict()
print(scores_dict)

def mean_score(read_quality_string):
    # your code here. remove the pass statement.
    pass
    
assert(mean_score('!!!!!') == 1.0)
assert(round(mean_score('49@5<*>=E'),2) == 25.78)

def parse_FASTQ(file):
    # your code here. remove the pass statement.
    pass
    
    
# parse lambda reads file  
lambda_reads_file = "files_for_hw4/lambda_reads.fq"
lambda_seqs_dict = parse_FASTQ(lambda_reads_file)

def filter_reads(seqs_dict,cutoff,out_file):
    # your code here. remove the pass statement.
    pass
    
    
# run on Lambda reads
lambda_filtered_file = "files_for_hw4/lambda_filtered_reads.txt"
filter_reads(lambda_seqs_dict, 10, lambda_filtered_file)

def concat_csvs(filenames, output_filename):
    # your code here. remove the pass statement.
    pass   
    

# create unified file
import glob
filenames = glob.glob("files_for_hw4/gbif_files/GBIF*.csv")
print(filenames)
output_filename = "files_for_hw4/gbif_files/concat_GBIF.csv"
append_csvs(______________, ______________)

def get_species(filename):
    # your code here. remove the pass statement.
    pass 
    
    
turtles_filename = "files_for_hw4/gbif_files/endangered_turtles.txt"
endangered_turtles = get_species(turtles_filename)
print(endangered_turtles)

def filter_records(filename, species, max_lat, out_csv_file):
    # your code here. remove the pass statement.
    pass     
    
    
filtered_file = "files_for_hw4/gbif_files/endangered.csv"
filter_records(_______, _______, _______, _______)

import re

re.compile(r'')

re.compile(r'')

re.compile(r'')

re.compile(r'')

### your code here