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Can the CSV mapper handle polymorphic reading and writing. If it can could you show a quick example?
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### Checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pypi.org/project/polars/) of Polars.
##…
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I have QVD file of 900mb and it wont read it or takes too long.
Is there any way to show a progress bar while reading the file?
Or at least some sort of indicator?
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User in discord was trying to figure out how to use `remap` to handle CSV files: https://discord.com/channels/742820443487993987/746070591097798688/821038938424344626
They are able to work with it …
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## Problem
Reading the [documentation](https://github.com/shellspec/shellspec/blob/master/docs/references.md#path--file--directory-subject) it is said that `file` is a subject, and later it is said t…
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I converted a dzt file into a csv and ran a PCA on the file, but I wasn't able to reread the edited csv into readgssi.
```
2024-01-16 23:38:04 - reading...
2024-01-16 23:38:04 - input file: …
KBslu updated
7 months ago
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It's true that CSV stands for comma-separated-values, but it's also true that other ways of separating values are valid CSV files these days.
We call all files with a list of different values a CSV f…
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### Is your feature request related to a problem or challenge?
As originally stated in #6922 (I'm not sure why the issue was closed) and discussed in #6801 the current `FileOpener` implementation f…
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```
class CSVReader {
struct CSVItr {
CSVItr() : m_stream(nullptr) {}
CSVItr(std::istream& in) : m_stream((in.good() ? &in : nullptr)) { ++(*this); }
CSVItr&…
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PCA works with our usual colaus1.focus.mr file however when I made a smaller csv file just by copy-pasting part of our original file it failed in reading the file. It seems to be an encoding problem …