OpenSenseNova/SenseNova-Skills · MIT
text-normalization-and-large-file-processing
对Excel文件进行文本标准化清洗(如去除异常前缀、提取纯中文字符等),并,最终输出清洗后的Excel文件并提供下载链接。
Contents
Skill Steps
> This sub-skill covers one capability of the Excel workflow. For reading/counting/Parquet optimization, see the parent workflow SKILL.md.
Step1 识别并清洗包含前缀符号的异常数值字段,统一转换为整数类型;同时使用正则表达式清洗文本字段,仅保留 Unicode 范围内的中文字符。
import re
import numpy as np
target_numeric_col = '需要转数字的文本列' # 示例:'获赞'
target_text_col = '需要提取中文的列' # 示例:'收货人'
# 1. 清洗包含前缀符号的数值字段
prefix_patterns = ['.', 'I ', '■ ', '一 ', '_', '. ']
def clean_numeric_with_prefix(value):
val_str = str(value).strip()
if val_str in ['None', 'nan', '', 'nan']:
return np.nan
for prefix in prefix_patterns:
if val_str.startswith(prefix):
val_str = val_str[len(prefix):].strip()
break
if val_str == '':
return np.nan
try:
return int(val_str)
except ValueError:
return np.nan
# 2. 清洗文本字段,仅保留 Unicode 范围内的中文字符(\u4e00-\u9fff)
def clean_chinese_name(name):
if pd.isna(name):
return name
s = str(name)
chinese_chars = re.findall(r'[\u4e00-\u9fff]', s)
cleaned = ''.join(chinese_chars)
return cleaned if cleaned else ''
if target_numeric_col in df.columns:
df[f'{target_numeric_col}_清洗后'] = df[target_numeric_col].apply(clean_numeric_with_prefix)
if target_text_col in df.columns:
df[f'{target_text_col}_清洗后'] = df[target_text_col].apply(clean_chinese_name)
Step2 将清洗后的结果保存为 Excel 文件,在报告中提供下载链接,并执行内存清理以应对大文件处理时的内存压力。
output_path = '/mnt/data/标准化清洗结果.xlsx'
# 保存清洗结果
df.to_excel(output_path, index=False, engine='openpyxl')
print(f'清洗结果已保存到: {output_path}')
# 生成可下载链接
print(f'[下载清洗结果表](sandbox:{output_path})')
# 内存清理
if 'df' in locals():
del df
gc.collect()Provenance
Authored by OpenSenseNova in OpenSenseNova/SenseNova-Skills. The content is mirrored here under its upstream license.
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