不知道你在寻找什么，即IDE与基于Python的解决方案，但这里有一个小脚本，你可以用它来迭代目录中的文件，打开它们，搜索和替换文本。这可能是finnicky工作，但取决于你的文件的内容：

import os

def replace_in_file(file_path):
    with open(file_path, 'r') as f:
        file_contents = f.read()

    # Replace occurrences of 'sum' with 'new_name' and 'b' with 'c' per OP instructions
    new_contents = file_contents.replace('sum(', 'new_name(').replace(', b', ', c')

    with open(file_path, 'w') as f:
        f.write(new_contents)

# Directory containing the .py files
directory = '/path/to/directory'

# Loop over all .py files in the directory
for filename in os.listdir(directory):
    if filename.endswith('.py'):
        file_path = os.path.join(directory, filename)
        replace_in_file(file_path)