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joinem

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library0.11.1pypypi✓ verified 82d ago

CLI and Python library for fast, flexible concatenation of tabular data using Polars. Current version 0.11.1. Active development.

pip install joinem
INSTALL
IMPORT
SIG · JOINEM
J
joinem
datapythonv0.11.1
Install
3.5s avg
Import
Disk
220MB
Pass rate
9/ 10
Env Coverage9 / 10
glibc
3.93.13
musl
3.93.13
Install & Compatibility
Where this runs
tested against v0.11.1 · pip install
no network on importno background threads
Install × environment matrix
Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux
musl
glibc
py 3.10
✓ —
✓ 3.6s
py 3.11
✓ —
✓ 3.7s
py 3.12
✓ —
✓ 3.3s
py 3.13
✓ —
✓ 3.3s
py 3.9
✕ build_error
✓ 3.7s
220MB installed
● package 220MB
Code
Verified usage

Verified import paths — ran on the pinned version, not inferred.

dataframe_cli
from joinem import dataframe_cli
from joinem import concat

Concatenate two Polars DataFrames using joinem.

from joinem import concat import polars as pl df1 = pl.DataFrame({"a": [1, 2], "b": [3, 4]}) df2 = pl.DataFrame({"a": [5, 6], "b": [7, 8]}) result = concat([df1, df2]) print(result)
joinem --version
Debug
Known issues
gotchajoinem relies on Polars; ensure Polars is installed. Using pip install joinem[polars] automatically installs it, but plain pip install joinem does not.
fix
Install with extras: pip install joinem[polars]
affects: all
breakingThe CLI interface changed in version 0.10.0 to use subcommands; scripts using the old command-line syntax may break.
fix
Update CLI usage: joinem --help for new syntax.
affects: <0.10.0
Upgrade
Version history
0.11.1latest on PyPI · released Oct 19, 2025
Audit
Dependencies
polarsrequiredjoinem uses Polars for data handling; must be installed separately or via pip install joinem[polars]
Agent activity
4 hits · last 30 days
node
4
Resources
joinem — pip install joinem · libregistry