沒有找到一個好的正則表達式模式來以正確的順序替換字符串（python）

Question

我有一個字符串格式的列名列表，如下所示：

lst = ["plug", "[plug+wallet]", "(wallet-phone)"]

現在我想使用正則表達式將帶有" ' "的df[]添加到每個列名，我做到了，當列表有(wallet-phone)這種字符串時，它會給出一個 output 像這樣df[('wallet']-df['phone')] 。 我怎么會這樣(df['wallet']-df['phone']),我的模式錯了嗎。 請參考以下：

import re
lst = ["plug", "[plug+wallet]", "(wallet-phone)"]
x=[]
y=[]
for l in lst: 
    x.append(re.sub(r"([^+\-*\/'\d]+)", r"'\1'", l))
    for f in x:    
        y.append(re.sub(r"('[^+\-*\/'\d]+')", r'df[\1]',f))

print(x)
print(y)

給出：

x:["'plug'", "'[plug'+'wallet]'", "'(wallet'-'phone)'"]
y:["df['plug']", "df['[plug']+df['wallet]']", "df['(wallet']-df['phone)']"]

圖案錯了嗎？ 預期 output：

x:["'plug'", "['plug'+'wallet']", "('wallet'-'phone')"]
y:["df['plug']", "[df['plug']+df['wallet']]", "(df['wallet']-df['phone'])"]

我也嘗試過([^+\-*\/()[]'\d]+)這種模式，但它並沒有避免() or []

Answer 1

查找單詞並將它們包含在字典參考中可能會更容易：

import re
lst = ["plug", "[plug+wallet]", "(wallet-phone)"]

z = [re.sub(r"(\w+)",r"df['\1']",w) for w in lst]

print(z)
["df['plug']", "[df['plug']+df['wallet']]", "(df['wallet']-df['phone'])"]