owgreen

vowel = ('a','i','u','e','o')
d = {'write':'wrote', 'go':'went', 'read':'read'}
verb_post = lambda x: d[x] if x in d else (x + 'd' if x[-1] =='e' else(x[:-1] + 'ied' if x[-1] == 'y' and x[-2] not in vowel else(x + 'ked' if x[-1] == 'c' else (x + 'ed'))))

owgreen

sum7 = lambda lst:sum([e if e!= 7 or i+1 >= len(lst) else lst[i+1] + e for i, e in enumerate(lst)])

owgreen

linear_merge = lambda x, y: sorted(x+y)

owgreen

def remove_adjacent(x):
    cp = x[:]
    for i, v in enumerate(cp):
        if v == cp[i-1]:
            x.remove(v)
    return x

owgreen

sort_last = lambda x: sorted(x,key=lambda y: y[-1])

owgreen

def front_x(x):
    l1, l2 = [], []
    for e in x:
        if e.startswith('x'):
            l1.append(e)
        else:
            l2.append(e)
    return sorted(l1) + sorted(l2)

owgreen

match_ends = lambda x: len([e for e in x if len(e) >= 2 and e[0] == e[-1]])

owgreen

def not_bad(s):
    lst = s.split(' ')
    try:
        n,b = lst.index('not'), lst.index('bad')
    except:
        return s
    if n < b:
        lst[n+1:b+1] = ''
        lst[n] = 'good'
        return ' '.join(lst)

owgreen

fix_first = lambda x: x[0] + x[1:].replace(x[0], '*')