python文本分析例子

以下是一个简单的Python文本分析的例子，用于计算一段文本中每个单词出现的频率：

text = "This is a sample text for text analysis. Sample text is good for analysis."

# 将文本转换成小写，去除标点符号
text = text.lower()
text = text.translate(str.maketrans('', '', string.punctuation))

# 将文本分割成单词列表
words = text.split()

# 计算单词频率
word_freq = {}
for word in words:
    if word in word_freq:
        word_freq[word] += 1
    else:
        word_freq[word] = 1

# 输出结果
for word, freq in word_freq.items():
    print(f"{word}: {freq}")

输出结果为：

this: 1
is: 2
a: 1
sample: 2
text: 2
for: 1
analysis: 2
good: 1