How can I search for a substring that is between two values ​of a string in python?

Question

someone who can give me an idea about doing the following: I have a text file of a single line but they send me several data, all as if it were xml but within a txt. ej:

<Respuesta><ResultEnviado><Resultado><Entrega>00123</Entrega><Refer>MueblesHiroshima</Refer><Item>34</Item><Valor>780</Valor></Resultado></ResultEnviado><EntregaItemResulados><EntregaItem><ItemId>123</ItemId><NameItem>MuebleSala</NameItem><ValorItem>180</ValorItem></EntregaItem><EntregaItem><ItemId>124</ItemId><NameItem>MuebleComedor</NameItem>ValorItem>200</ValorItem></EntregaItem><EntregaItem><ItemId>125</ItemId><NameItem>Cama</NameItem>ValorItem>200</ValorItem></EntregaItem><EntregaItem><ItemId>126</ItemId><NameItem>escritorio</NameItem>ValorItem>200</ValorItem></EntregaItem></EntregaItemResulados></Respuesta>

As you could see, it is a file with the extension txt.

<ResultEnviado><Resultado><Entrega>1213255654</Entrega><Refer>MueblesHiroshima</Refer><Item>34</Item><Valor>780</Valor></Resultado></ResultEnviado>

I am using python for the exercise.

Thank you very much for your comments or ideas.

Answer 1

Here we can use regular expressions .search() and .match() functions to find everything between the set tags. Note you need to import regular expression using the import re .

More info on regular expressions in python: here

import re

#open the file and read it
path = "C:/temp/file.txt"
with open(path, "r") as f:
    text = f.read()

#we use regular experssion to find everything between the tags
match = re.search("<ResultEnviado>(.*?)</ResultEnviado>", text)

#prints the text if it matches
if match:
    print(match.group(1))
else:
    print("No match found.")

this prints:

<Resultado><Entrega>00123</Entrega><Refer>MueblesHiroshima</Refer><Item>34</Item><Valor>780</Valor></Resultado>

Please let me know if you need any more help.