CODEWITHSUNDEEP
pythontext
Chenxi
Chenxi

Reputation: 297

Read text file from Python and use corresponding variable

I just started Python and would like to read the following text file and use the variable values:
Textfile 'r1': (Variable name and its value)

    mu |  cs |  co
------------------
    5  |  100|  300 
------------------

I have the following code:

with open("r1.txt") as file1: data = file1.read()

it could be printed but f returns no value.

How could I use the variable in the text file for later use (mu, cs, co)?

Ex: I would like to generate a poisson distribution,

Can I write:

    G = poisson(data.mu)

It seems not, but how could I call the corresponding varilables in the dataset?

Thank you!

Upvotes: 1

Views: 3026

Answers (2)

jerliol
jerliol

Reputation: 195

You should read two lines first, then parse them, and finally use it as dict

with open("r1.txt") as fp:
    lines = [line for line in fp]
    keys = [s.strip() for s in lines[0].split('|')]  # key line
    vals = [s.strip() for s in lines[2].split('|')]  # value line
    f = dict(zip(keys, vals))
    print(f)

then, you could use f['mu'] for then mu value.

Upvotes: 0

098799
098799

Reputation: 462

After you used the read function (in the print command), the file has already been read, so second reading gives nothing. You should assign reading to some variable, such as 

with open("r1.txt") as file:
   lines = file.read()

so that you can go back to lines in the future.

But if you want to assign specific variables to specific values read from file, you need to parse it. Here, it depends heavily on the specific format your data is in.

Upvotes: 1

Related Questions