Python 3.11.11 : Colab simple tests with Protocol Buffers - part 054.

Today, something simple into colab_google GitHub project, see catafest_071.ipynb - simple example with altair and vega-datasets python packages.

The result comes with some charts example.

Python 3.12.12 : Google colab example - satellite sentinel-2-l2a.

Tested today, location my home, this is the result of satellite sentinel-2-l2a - octomber 2025.

Python Qt6 : tool for remove duplicate files ...

Today I created a Python script with PyQt6 that allows me to remove duplicate files based on three ways of selecting the type of duplicate.

The script also makes an estimate of the execution time...

Because the source code is relatively simple and can be very easily reconstructed with the help of artificial intelligence, I am not adding it to the posts.

Here is what the application looks like with PyQt6.

Blender 3D : ... simple clothing addon.

Today, I created a simple clothing addon with a two-mesh coat. The addon adds everything needed for the simulation including material types for the clothes.

Python Qt6 : tool for cutting images ...

Today I made a script that allows adding custom horizontal and vertical sliders to an image and, depending on the custom distance between them, cuts the image into squares of different sizes.

Python Qt6 : tool for renaming files with creation date .

Since this hacking and the crashes... I've always taken screenshots... Today I created a small script that takes files from a folder and renames them with the creation date in this format...yyyyMMdd_HHmmss .

... obviously artificial intelligence helped me.

This is the source code :

import sys
import os
import shutil
from PyQt6.QtWidgets import QApplication, QWidget, QPushButton, QVBoxLayout, QFileDialog, QMessageBox
from PyQt6.QtCore import QDateTime

class FileRenamer(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Redenumire fișiere cu dată și index")
        self.setGeometry(100, 100, 400, 150)

        layout = QVBoxLayout()

        self.button = QPushButton("Selectează folderul și redenumește fișierele")
        self.button.clicked.connect(self.rename_files)
        layout.addWidget(self.button)

        self.setLayout(layout)

    def rename_files(self):
        folder = QFileDialog.getExistingDirectory(self, "Selectează folderul")
        if not folder:
            return

        files = [f for f in os.listdir(folder) if os.path.isfile(os.path.join(folder, f))]
        files.sort()  # Sortează pentru consistență

        for index, filename in enumerate(files, start=1):
            old_path = os.path.join(folder, filename)
            try:
                creation_time = os.path.getctime(old_path)
                dt = QDateTime.fromSecsSinceEpoch(int(creation_time))
                date_str = dt.toString("yyyyMMdd_HHmmss")
                ext = os.path.splitext(filename)[1]
                new_name = f"{date_str}_{index:03d}{ext}"
                new_path = os.path.join(folder, new_name)

                # Evită suprascrierea fișierelor existente
                if not os.path.exists(new_path):
                    shutil.move(old_path, new_path)
            except Exception as e:
                QMessageBox.critical(self, "Eroare", f"Eroare la fișierul {filename}:\n{str(e)}")
                continue

        QMessageBox.information(self, "Succes", "Fișierele au fost redenumite cu succes!")

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = FileRenamer()
    window.show()
    sys.exit(app.exec())

Python 3.12.12 : Google colab example of satellite detecting edges .

Simple colab project with google satellite detecting ...

I used these python packages:

%pip install segment-geospatial
%pip install leafmap
%pip install samgeo
%pip install localtileserver
%pip install fiona

This is the result:

News : Google DeepMind and Google Colab - part 001.

Today I tested Google DeepMind and Google Colab.

You can see my simple test on Suceava area ...

News : What’s new in Python 3.14.

... this news is old from five days ago .

Python 3.14 is the latest stable release of the Python programming language, with a mix of changes to the language, the implementation, and the standard library.

See the official webpage.

Python 3.8.5 : ... online python tool

You can found this good online tool for simple python programming. See the result with version and python modules used into this online tool.

Versiunea de Python: 3.8.5 (default, Jul 20 2020, 23:11:29) 
[GCC 9.3.0]

Module instalate:
- webencodings (0.5.1)
- urllib3 (1.25.9)
- toml (0.10.1)
- six (1.15.0)
- setuptools (47.0.0)
- retrying (1.3.3)
- requests (2.23.0)
- pytz (2020.1)
- pytoml (0.1.21)
- python-dateutil (2.8.1)
- pyparsing (2.4.7)
- progress (1.5)
- pip (20.1.1)
- pep517 (0.8.2)
- pandas (1.1.0)
- packaging (20.4)
- ordered-set (4.0.1)
- numpy (1.19.1)
- msgpack (1.0.0)
- lockfile (0.12.2)
- idna (2.9)
- html5lib (1.0.1)
- distro (1.5.0)
- distlib (0.3.0)
- contextlib2 (0.6.0)
- colorama (0.4.3)
- chardet (3.0.4)
- certifi (2020.4.5.1)
- CacheControl (0.12.6)
- appdirs (1.4.4)


** Process exited - Return Code: 0 **

Python 3.15 : PEP 810 - Explicit lazy imports

Python’s import system could be in for its biggest change in years.

Lazy imports are controlled, in the sense that deferred loading is only triggered by the importing code itself.

This avoids shifting responsibility onto downstream users and prevents accidental surprises in library behavior.

The new explicit lazy import mechanism enhances security by deferring module initialization until runtime, thereby minimizing the attack surface and preventing premature execution of potentially vulnerable or malicious code during application startup.

See on the official website.

Python Qt6 : simple tool with gnews python package.

Today, I tested a simple tool for news with the gnews python package:

Python 3.13.2 : ... Android Pydroid 3 application with flask ...