---
name: "pylupdate"
section: "1"
platform: "linux"
package: "pyqt-tools"
version: "3.18.1-4"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/pylupdate"
---

# pylupdate(1)

update Qt Linguist translation files from Python sources

## NAME

pylupdate - update Qt Linguist translation files from Python sources

## SYNOPSIS

**pylupdate** \[ *options* \] *project-file...*

## DESCRIPTION

This page documents the **Qt Linguist Update** tool for the Qt GUI toolkit, for Python source files. **PyLupdate** reads a qmake project file (.pro file), finds the translatable strings in the specified source, header and interface files, and updates the translation files (.ts files) specified in it. The translation files are given to the translator who uses **Qt Linguist** to read the files and insert the translations.

The .ts file format is a simple human-readable XML format that can be used with version control systems if required.

## OPTIONS

- *-help*

  Display the usage and exit.

- *-noobsolete*

  Drop all obsolete strings.

- *-verbose*

  Explain what is being done.

- *-version*

  Display the version of **pylupdate** and exit.

## USAGE

Here is an example .pro file that can be given to **pylupdate:**

```
SOURCES         = funnydialog.py \
                  main.py \
                  wackywidget.py
FORMS           = fancybox.ui
TRANSLATIONS    = gnomovision_dk.ts \
                  gnomovision_fi.ts \
                  gnomovision_no.ts \
                  gnomovision_se.ts
```

When running **pylupdate** on this project file, the translatable strings in all the files listed in the SOURCES and FORMS entries will be put in the translation files listed in the TRANSLATIONS entry. Previous translations will be reused as far as possible, and translated strings that have vanished from the source files are marked obsolete.

## SEE ALSO

[**lupdate**(1)](/lupdate/1.md), [**lrelease**(1)](/lrelease/1.md) and **http://doc.trolltech.com/i18n.html**

## AUTHOR

This manual page was written by Ricardo J. Cárdenes Medina for the Debian GNU/Linux System (but may be used by others), based on Trolltech's \<info@trolltech.com\> manual page for lupdate