Read only specific part first two lines from text file in python

» python » Read only specific part first two lines from text file in python

By : user3042598

Date : November 28 2020, 12:01 PM

it fixes the issue Here's my problem description:- i have a .txt file to be read and i want only specific part of the first two lines to be read and printed , you can read line by line and find the necessary data:

code :

with open('yourTextFile.txt', "r") as f:
    for line in f:
        if "PID" in line or "SN" in line:
            dataArr = line.split(",")
            for data in dataArr:
                if 'PID' in data:
                    print(data)
                if 'SN' in data:
                    print(data)

PID: dd-ddddd-d        
 SN: qqqqqqqqq              

PID: yy-yyyyy-yy-yy    
 SN: ftyujnbghjn

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python - Read file from and to specific lines of text

By : dr7ver

Date : March 29 2020, 07:55 AM

hope this fix your issue If you simply want the block of text between Start and End, you can do something simple like:

code :

with open('test.txt') as input_data:
    # Skips text before the beginning of the interesting block:
    for line in input_data:
        if line.strip() == 'Start':  # Or whatever test is needed
            break
    # Reads text until the end of the block:
    for line in input_data:  # This keeps reading the file
        if line.strip() == 'End':
            break
        print line  # Line is extracted (or block_of_lines.append(line), etc.)

How to read specific characters from lines in a text file using python?

By : Harsh Wardhan

Date : March 29 2020, 07:55 AM

this will help I would use regex but here is a version without, clearer than @Thrustmaster's solution imo.

code :

>>> text = "[class1] 1:-28 9:-315 13:-354227 2:-36.247 17:-342 8:-34 14:-3825"
>>> [int(x.split(':')[0]) for x in text.split()[1:]]
[1, 9, 13, 2, 17, 8, 14]

Python - Read specific lines in a text file based on a condition

By : Anto

Date : March 29 2020, 07:55 AM

hope this fix your issue Problem Statement:

code :

import pandas as pd:
df = pd.read_csv('input_csv.csv') # This assumes you have a csv format file
names = {}
for name, subdf in df.groupby('name'):
    if name not in names:
        names[name] = {}
    if (subdf['date']==201505).any():
        if subdf['count'].count()==1:
            names[name]['status'] = 'new'
        else:
            names[name]['status'] = 'active'
            names[name]['last5median'] = subdf['count'].tail().median()
    else:
        names[name]['status'] = 'inactive'


>>>
{'John': {'status': 'inactive'},
 'Mary': {'last5median': 166.0, 'status': 'active'},
 'Tara': {'status': 'new'}}

python: editing specific lines in a text file.File not being read after first edit

By : Ramy Hosny

Date : March 29 2020, 07:55 AM

To fix the issue you can do The first problem is that 56 does not have a new line at the end. That means that it and the next line will be displayed on the same line. The second problem is that you are writing the string representation of the list onto one line instead of writing each string in the list on separate lines. Change lines[2] = 56 to lines[2] = "56\n", and change out.writelines(str(lines)) to out.writelines(lines)

How to read specific lines from a text file in python?

By : parikshit jalihal

Date : March 29 2020, 07:55 AM

seems to work fine I have a text file that contains a lot of data. I want to be able to read the text file and write a new text file. However on the new text file I don't want it to include some part of the orginal.