从一系列字符串中删除不需要的子字符串

Question

I have a series of strings as given below

Tata Jaguor 1474 pSNL Series Car
Tata Nano Pro 5864 Series Car
Tata Indica 8586 k5478
Tata Nano 5864 E5478
Tata Bolero 8974 1567 Series

After stripping the unwanted string the resultant string expecting is given respectively as follows

  Jaguor 1474
  Nano 5864 
  Indica 8586_k5478
  Nano 5864_E5478
  Bolero 8974_1567

i tried the following code to do this,but not got the expected result

Vehiclename.replace("Tata ","").replace("Series","").replace("Pro ","").replace(" Car","")

Is there any other better way to do this?

Answer 1

reobj = re.compile(r"Tata ([\w ]+\d+).*?$", re.IGNORECASE | re.MULTILINE)
result = reobj.sub(r"\1", subject)

http://rubular.com/r/jvvtCjlTKy

Jaguor 1474
Nano Pro 5864
Indica 8586 k5478
Nano 5864 E5478
Bolero 8974 1567

Answer 2

In conjunction with my comment:

In your example, you have Tata but you are trying to replace Tata<space><space> . series in your example is written differently and the same goes for Pro , digging the documentation for the String replace()

The method replace() returns a copy of the string in which the occurrences of old have been replaced with new, optionally restricting the number of replacements to max.

In your case, you do not seem to be doing anything with the returned value, this should work:

Vehiclename = Vehiclename.replace("Tata ","").replace("Series","").replace("Pro ","").replace(" Car","")

Answer 3

Following is the regular expression for you:

'\s.*[0-9]{4}'

You can implement in python. This isnt removing what you are 'not' looking for instead giving what you are looking for.