python中统计单词数

Question

为什么是红色的运行不了

file=open("D:\\PyCharm Community Edition 2021.3.2\\words.txt")
words=list(file)
file.close()
a2z=[c for c in range(ord('a'),(ord('z'))]
a2z=[chr(c) for c in a2z]
import matplotlib.pyplot as plt
def firstWordFreq():
    freq=[]
    for letter in a2z:
        freq.append((letter,len([w for w in words if w[0]==letter])))
    return freq
plt.bar(a2z,[t[1] for t in firstWordFreq()])
plt.show()

Answer 1

少个括号

a2z = [c for c in range(ord('a'), (ord('z')))]