I have big file (few GBs) with text. For example, it have next text: <pre class="prettyprint"><code>Hello, World! </code></pre> I need to insert word " funny" at 5 position, and offset the rest of text: <pre class="prettyprint"><code>Hello, funny World! </code></pre> How I can don't read all file for offsetting rest? Or how I can optimise this operation? Thanks.

string insertion in big file

I have big file (few GBs) with text.

For example, it have next text:

Hello, World!

I need to insert word " funny" at 5 position, and offset the rest of text:

Hello, funny World!

How I can don't read all file for offsetting rest? Or how I can optimise this operation?

Thanks.

398

asked Jun 19 '11 20:06

You can't. Plain text files cannot be shrunk or expanded in the beginning or middle of the file, but only at the end.

answered Sep 20 '22 12:09

Well you cant, please see this for more info How do I modify a text file in Python?

answered Sep 19 '22 12:09

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