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how to read large files in python

Imam-Zamana answered on March 4, 2024 Popularity 3/10 Helpfulness 2/10

answer how to read large files in python

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how to read large files in python

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chunk_size = 1024 * 1024  # 1 MB for example
with open('your_large_file.txt', 'r') as file:
    while True:
        chunk = file.read(chunk_size)
        if not chunk:
            break
        # Process chunk
https://github.com/MominIqbal-1234
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Popularity 3/10 Helpfulness 2/10 Language python

Source: Grepper

Tags: large-files python

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Contributed on Mar 04 2024

Imam-Zamana

0 Answers Avg Quality 2/10

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import mmap


with open('Data.txt', 'r') as file:
    mmap_file = mmap.mmap(file.fileno(), length=0, access=mmap.ACCESS_READ)
    start_position = mmap_file.find(b'{10: 10}')

    if start_position != -1:
        # Assuming the dictionary-like string ends with a newline or is at the end of the file
        mmap_file.seek(start_position)  # Move to the start position
        line = mmap_file.readline()     # Read the line from the file
    else:
        print("String not found")

https://github.com/MominIqbal-1234
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Popularity 6/10 Helpfulness 1/10 Language python

Source: Grepper

Tags: large-files handle file python

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Contributed on Mar 04 2024

Imam-Zamana

0 Answers Avg Quality 2/10

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how to read large files in python

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