Python Mapped Strings

[snippsat]

In code now it will overwrite all values and only save last.
I would do it something like this,making a replace_dict first then loop over and replace.

# mapp1.py
# Your .csv output append to list,can also make it dict on fly
lst = [
    ['-nrdbc', 'n3DeleteBearerCommand'],
    ['-nrrc', 'n3ContextRsp'],
]

# Make it to a dictionary
replace_dict = {key: value for key, value in lst}

input_string = "gsh modify_gtp_v2 -nrrc 3 -trac 3 -nrds 2 -trds 5 -nrdbc 2"
words = input_string.split()
output_words = []
for word in words:
    if word in replace_dict:
        output_words.append(replace_dict[word])
    else:
        output_words.append(word)

output_string = " ".join(output_words)
print(output_string)

Test.

λ python -i mapp1.py
gsh modify_gtp_v2 n3ContextRsp 3 -trac 3 -nrds 2 -trds 5 n3DeleteBearerCommand 2

>>> replace_dict
{'-nrdbc': 'n3DeleteBearerCommand', '-nrrc': 'n3ContextRsp'}

>>> # Made from
>>> lst
[['-nrdbc', 'n3DeleteBearerCommand'], ['-nrrc', 'n3ContextRsp']]