在 python 中使用正则表达式中的 lookbehnd 提取字符串直到 '\n' 字符。 它也可以有字母数字字符、特殊字符和空格

Question

text = ' My uncle is admitted in the hospital.\n He has been suffering from 10 months.\n The address of the hospital is \nApollo Health City Campus, Jubilee Hills, Hyderabad - 500 033. '

now i want to extract the address of the hospital ie ' Apollo Health City Campus, Jubilee Hills, Hyderabad -** ' using regex lookbehind, i used the following code but i want a expression that can help me extract the strings uptill the \n character prior to the six digit pincode ie '500 033' Currently am trying to extract 6 strings but i want a regex expression that can help me get all the strings till '\n'.

r'((\w\S+\s+){1,6})(?=500 033)'

expected output - ' Apollo Health City Campus, Jubilee Hills, Hyderabad - ' ie all strings before \n

Answer 1

why not simply split using \n and get the last string?

text = ' My uncle is admitted in the hospital.\n He has been suffering from 10 months.\n The address of the hospital is \nApollo Health City Campus, Jubilee Hills, Hyderabad - 500 033. '
print(text.split('\n')[-1])

If you are sure that the string will contain a pincode. ie 6 digit number, another approach could be:

text = ' My uncle is admitted in the hospital.\n He has been suffering from 10 months.\n The address of the hospital is \nApollo Health City Campus, Jubilee Hills, Hyderabad - 500 033. '
for x in text.split('\n'):
    if [idx.isdigit() for idx in x].count(True)==6:
        print(x)

I have added a check for 6 digit in a string only. you can modify according to your needs.