如何在熊猫方括号内的字符串之间添加逗号

Question

我的熊猫数据框为：-

categories
['business $ finance'\n 'business $currency']
['entertainment $movies' 'entertainment &music']
['sports& volleyball' 'sports& football'\n 'sports$ baseball']
...............

所有我想将这些放在方括号内的字符串转换为正确的列表格式。预期输出为：-

categories
['business $ finance','business $currency']
['entertainment $movies','entertainment &music']
['sports&volleyball','sports& football','sports$ baseball']
....................

到目前为止我尝试过的是：-

array_cat=[]
for i in df['categories']:
      s=i[0].split()
      array_cat.append(s)

编辑

df['categories'][0]类似于：-

"['business finance#mergers & acquisitions' 'business#industries#telecom'\n 'diseases#kidney' 'gaming #offline #console#xbox'\n 'gaming #offline #playstation' 'lifestyle#shopping' 'movies#genres#drama'\n 'music#genres#hiphop/rap' 'personal finance#tools' 'technology#trending'\n 'theme#historicalsites']"

Answer 1

对''之间的所有值使用str.findall：

df['categories'] = df['categories'].str.findall('\'(.*?)\'')
print (df)
                                          categories
0  [business finance#mergers & acquisitions, busi...
1        [entertainment$movies, entertainment&music]
2  [sports&volleyball, sports&football, sports$ba...