Andrew French


A (very) simple module to check whether a host is up or not.


A (very) simple Deno module to check whether a host is up or not.


import { isUp } from ''

console.log(await isUp(''))

The URL parameter can start with http(s):// or not, isUp will add https:// if the protocol is missing.

Important: you must run your program with --allow-net as this module will access internet.

Running tests

deno test --allow-net

Global install

You can install this module globally with:

deno install --allow-net -n isup mod.ts

Then use it from your CLI:

$ isup
$ ✅ - is up!

Download Details:

Author: JulienVanelian

Source Code:

#deno #node #nodejs #javascript

What is GEEK

Buddha Community

A (very) simple module to check whether a host is up or not.

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Shubham Ankit

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How to Automate Excel with Python | Python Excel Tutorial (OpenPyXL)

How to Automate Excel with Python

In this article, We will show how we can use python to automate Excel . A useful Python library is Openpyxl which we will learn to do Excel Automation


Openpyxl is a Python library that is used to read from an Excel file or write to an Excel file. Data scientists use Openpyxl for data analysis, data copying, data mining, drawing charts, styling sheets, adding formulas, and more.

Workbook: A spreadsheet is represented as a workbook in openpyxl. A workbook consists of one or more sheets.

Sheet: A sheet is a single page composed of cells for organizing data.

Cell: The intersection of a row and a column is called a cell. Usually represented by A1, B5, etc.

Row: A row is a horizontal line represented by a number (1,2, etc.).

Column: A column is a vertical line represented by a capital letter (A, B, etc.).

Openpyxl can be installed using the pip command and it is recommended to install it in a virtual environment.

pip install openpyxl


We start by creating a new spreadsheet, which is called a workbook in Openpyxl. We import the workbook module from Openpyxl and use the function Workbook() which creates a new workbook.

from openpyxl
import Workbook
#creates a new workbook
wb = Workbook()
#Gets the first active worksheet
ws =
#creating new worksheets by using the create_sheet method

ws1 = wb.create_sheet("sheet1", 0) #inserts at first position
ws2 = wb.create_sheet("sheet2") #inserts at last position
ws3 = wb.create_sheet("sheet3", -1) #inserts at penultimate position

#Renaming the sheet
ws.title = "Example"

#save the workbook = "example.xlsx")


We load the file using the function load_Workbook() which takes the filename as an argument. The file must be saved in the same working directory.

#loading a workbook
wb = openpyxl.load_workbook("example.xlsx")




#getting sheet names
result = ['sheet1', 'Sheet', 'sheet3', 'sheet2']

#getting a particular sheet
sheet1 = wb["sheet2"]

#getting sheet title
result = 'sheet2'

#Getting the active sheet
sheetactive =
result = 'sheet1'




#get a cell from the sheet
sheet1["A1"] <
  Cell 'Sheet1'.A1 >

  #get the cell value
ws["A1"].value 'Segment'

#accessing cell using row and column and assigning a value
d = ws.cell(row = 4, column = 2, value = 10)




#looping through each row and column
for x in range(1, 5):
  for y in range(1, 5):
  print(x, y, ws.cell(row = x, column = y)

#getting the highest row number

#getting the highest column number

There are two functions for iterating through rows and columns.

Iter_rows() => returns the rows
Iter_cols() => returns the columns {
  min_row = 4, max_row = 5, min_col = 2, max_col = 5
} => This can be used to set the boundaries
for any iteration.


#iterating rows
for row in ws.iter_rows(min_row = 2, max_col = 3, max_row = 3):
  for cell in row:
  print(cell) <
  Cell 'Sheet1'.A2 >
  Cell 'Sheet1'.B2 >
  Cell 'Sheet1'.C2 >
  Cell 'Sheet1'.A3 >
  Cell 'Sheet1'.B3 >
  Cell 'Sheet1'.C3 >

  #iterating columns
for col in ws.iter_cols(min_row = 2, max_col = 3, max_row = 3):
  for cell in col:
  print(cell) <
  Cell 'Sheet1'.A2 >
  Cell 'Sheet1'.A3 >
  Cell 'Sheet1'.B2 >
  Cell 'Sheet1'.B3 >
  Cell 'Sheet1'.C2 >
  Cell 'Sheet1'.C3 >

To get all the rows of the worksheet we use the method worksheet.rows and to get all the columns of the worksheet we use the method worksheet.columns. Similarly, to iterate only through the values we use the method worksheet.values.


for row in ws.values:
  for value in row:



Writing to a workbook can be done in many ways such as adding a formula, adding charts, images, updating cell values, inserting rows and columns, etc… We will discuss each of these with an example.




#creates a new workbook
wb = openpyxl.Workbook()

#saving the workbook"new.xlsx")




#creating a new sheet
ws1 = wb.create_sheet(title = "sheet 2")

#creating a new sheet at index 0
ws2 = wb.create_sheet(index = 0, title = "sheet 0")

#checking the sheet names
wb.sheetnames['sheet 0', 'Sheet', 'sheet 2']

#deleting a sheet
del wb['sheet 0']

#checking sheetnames
wb.sheetnames['Sheet', 'sheet 2']




#checking the sheet value

#adding value to cell
ws['B2'] = 367

#checking value




We often require formulas to be included in our Excel datasheet. We can easily add formulas using the Openpyxl module just like you add values to a cell.

For example:

import openpyxl
from openpyxl
import Workbook

wb = openpyxl.load_workbook("new1.xlsx")
ws = wb['Sheet']

ws['A9'] = '=SUM(A2:A8)'"new2.xlsx")

The above program will add the formula (=SUM(A2:A8)) in cell A9. The result will be as below.




Two or more cells can be merged to a rectangular area using the method merge_cells(), and similarly, they can be unmerged using the method unmerge_cells().

For example:
Merge cells

#merge cells B2 to C9
ws['B2'] = "Merged cells"

Adding the above code to the previous example will merge cells as below.




#unmerge cells B2 to C9

The above code will unmerge cells from B2 to C9.


To insert an image we import the image function from the module openpyxl.drawing.image. We then load our image and add it to the cell as shown in the below example.


import openpyxl
from openpyxl
import Workbook
from openpyxl.drawing.image
import Image

wb = openpyxl.load_workbook("new1.xlsx")
ws = wb['Sheet']
#loading the image(should be in same folder)
img = Image('logo.png')
ws['A1'] = "Adding image"
#adjusting size
img.height = 130
img.width = 200
#adding img to cell A3

ws.add_image(img, 'A3')"new2.xlsx")




Charts are essential to show a visualization of data. We can create charts from Excel data using the Openpyxl module chart. Different forms of charts such as line charts, bar charts, 3D line charts, etc., can be created. We need to create a reference that contains the data to be used for the chart, which is nothing but a selection of cells (rows and columns). I am using sample data to create a 3D bar chart in the below example:


import openpyxl
from openpyxl
import Workbook
from openpyxl.chart
import BarChart3D, Reference, series

wb = openpyxl.load_workbook("example.xlsx")
ws =

values = Reference(ws, min_col = 3, min_row = 2, max_col = 3, max_row = 40)
chart = BarChart3D()
ws.add_chart(chart, "E3")"MyChart.xlsx")


How to Automate Excel with Python with Video Tutorial

Welcome to another video! In this video, We will cover how we can use python to automate Excel. I'll be going over everything from creating workbooks to accessing individual cells and stylizing cells. There is a ton of things that you can do with Excel but I'll just be covering the core/base things in OpenPyXl.

⭐️ Timestamps ⭐️
00:00 | Introduction
02:14 | Installing openpyxl
03:19 | Testing Installation
04:25 | Loading an Existing Workbook
06:46 | Accessing Worksheets
07:37 | Accessing Cell Values
08:58 | Saving Workbooks
09:52 | Creating, Listing and Changing Sheets
11:50 | Creating a New Workbook
12:39 | Adding/Appending Rows
14:26 | Accessing Multiple Cells
20:46 | Merging Cells
22:27 | Inserting and Deleting Rows
23:35 | Inserting and Deleting Columns
24:48 | Copying and Moving Cells
26:06 | Practical Example, Formulas & Cell Styling

📄 Resources 📄
OpenPyXL Docs: 
Code Written in This Tutorial: 


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5 Favorite PHP Libraries for File Manipulation and MIME Type Detection

In today's post we will learn about 5 Favorite PHP Libraries for File Manipulation and MIME Type Detection.

What is MIME type detection?

The most simple way to detect the MIME type of any file is to use MIME_Type's static autoDetect() method. It will try to determine the file's type and return it as a string. If an error occurs, a PEAR_Error object is returned. By default, only the plain MIME type will be returned, without any comments or parameters.

Table of contents:

  • CSV - A CSV data manipulation library.
  • Flysystem - Abstraction for local and remote filesystems.
  • Gaufrette - A filesystem abstraction layer.
  • PHP FFmpeg - A wrapper for the FFmpeg video library.
  • UnifiedArchive - A unified reader and writer of compressed archives.

1 - CSV:

A CSV data manipulation library.

Csv is a library to ease parsing, writing and filtering CSV in PHP. The library goal is to be powerful while remaining lightweight, by utilizing PHP native classes whenever possible.


  • Easy to use API
  • Read and Write to CSV documents in a memory efficient and scalable way
  • Support PHP stream filtering capabilities
  • Transform CSV documents into popular format (JSON, XML or HTML)
  • Fully documented
  • Fully unit tested
  • Framework-agnostic

System Requirements

You need the mbstring extension to use Csv and the latest stable version of PHP is recommended.

Please find below the PHP support for Csv version 9.

Min. Library VersionMin. PHP VersionMax. Supported PHP Version
9.0.0PHP 7.0.10PHP 7.1.x
9.1.2PHP 7.0.10PHP 7.2.x
9.2.0PHP 7.0.10PHP 7.4.x
9.6.0PHP 7.2.5PHP 7.4.x
9.6.2PHP 7.2.5PHP 8.0.x
9.7.0PHP 7.3.0PHP 8.0.x
9.7.3PHP 7.3.0PHP 8.1.x
9.8.0PHP 7.4.0PHP 8.1.x


Install Csv using Composer.

composer require league/csv


Warning: If your CSV document was created or is read on a Macintosh computer, add the following lines before using the library to help PHP detect line ending.

if (!ini_get("auto_detect_line_endings")) {
    ini_set("auto_detect_line_endings", '1');


The library has a :

To run the tests, run the following command from the project folder.

composer test

View on Github

2 - Flysystem:

Abstraction for local and remote filesystems.

Flysystem is a file storage library for PHP. It provides one interface to interact with many types of filesystems. When you use Flysystem, you're not only protected from vendor lock-in, you'll also have a consistent experience for which ever storage is right for you.

Getting Started

Officially supported adapters

Third party Adapters

You can always create an adapter yourself.


If you discover any security related issues, please email instead of using the issue tracker.

View on Github

3 - Gaufrette:

A filesystem abstraction layer.

Gaufrette provides a filesystem abstraction layer.

Why use Gaufrette?

Imagine you have to manage a lot of medias in a PHP project. Lets see how to take this situation in your advantage using Gaufrette.

The filesystem abstraction layer permits you to develop your application without the need to know where all those medias will be stored and how.

Another advantage of this is the possibility to update the files location without any impact on the code apart from the definition of your filesystem. In example, if your project grows up very fast and if your server reaches its limits, you can easily move your medias in an Amazon S3 server or any other solution.


Requires :

  • docker-ce
  • docker-compose

Create .env file :

$ make

and configure it as you want.

Build the php docker image :

$ make

Install dependencies :

$ make docker.all-deps

Run tests :

$ make docker.tests

You can also use a different php version, simply set the PHP_VERSION env var to any of these values when calling a make target :

See the docker-compose.yml file for more details.

You'll need to clear the previously installed dependencies when switching from a version to an other, to do so, run :

$ make clear-deps
$ PHP_VERSION=<the_version_you_want_to_use> make build install-deps

Apply Coding Standards

You should check for CS violations by using

$ make php-cs-compare

and fix them with

$ make php-cs-fix


This project does not have any stable release yet but we do not want to break BC now.

View on Github

4 - PHP FFmpeg:

A wrapper for the FFmpeg video library.

An Object-Oriented library to convert video/audio files with FFmpeg / AVConv.


This library requires PHP 8.0 or higher. For older versions of PHP, check out the 0.x-branch.

The recommended way to install PHP-FFMpeg is through Composer.

$ composer require php-ffmpeg/php-ffmpeg

Basic Usage

require 'vendor/autoload.php';

$ffmpeg = FFMpeg\FFMpeg::create();
$video = $ffmpeg->open('video.mpg');
    ->resize(new FFMpeg\Coordinate\Dimension(320, 240))
    ->save(new FFMpeg\Format\Video\X264(), 'export-x264.mp4')
    ->save(new FFMpeg\Format\Video\WMV(), 'export-wmv.wmv')
    ->save(new FFMpeg\Format\Video\WebM(), 'export-webm.webm');


This documentation is an introduction to discover the API. It's recommended to browse the source code as it is self-documented.


FFMpeg\FFMpeg is the main object to use to manipulate medias. To build it, use the static FFMpeg\FFMpeg::create:

$ffmpeg = FFMpeg\FFMpeg::create();

FFMpeg will autodetect ffmpeg and ffprobe binaries. If you want to give binary paths explicitly, you can pass an array as configuration. A Psr\Logger\LoggerInterface can also be passed to log binary executions.

$ffmpeg = FFMpeg\FFMpeg::create(array(
    'ffmpeg.binaries'  => '/opt/local/ffmpeg/bin/ffmpeg',
    'ffprobe.binaries' => '/opt/local/ffmpeg/bin/ffprobe',
    'timeout'          => 3600, // The timeout for the underlying process
    'ffmpeg.threads'   => 12,   // The number of threads that FFMpeg should use
), $logger);

You may pass a temporary_directory key to specify a path for temporary files.

$ffmpeg = FFMpeg\FFMpeg::create(array(
    'temporary_directory' => '/var/ffmpeg-tmp'
), $logger);

Manipulate media

FFMpeg\FFMpeg creates media based on URIs. URIs could be either a pointer to a local filesystem resource, an HTTP resource or any resource supported by FFmpeg.

Note: To list all supported resource type of your FFmpeg build, use the -protocols command:

ffmpeg -protocols

To open a resource, use the FFMpeg\FFMpeg::open method.


Two types of media can be resolved: FFMpeg\Media\Audio and FFMpeg\Media\Video. A third type, FFMpeg\Media\Frame, is available through videos.

View on Github

5 - UnifiedArchive:

A unified reader and writer of compressed archives.

How it works

UnifiedArchive uses "drivers", which can be one of types:

  1. PHP Extensions
  2. Utilities + bridge
  3. Pure PHP

By default, UA goes top-down to select first available driver for passed archive. So, PHP Extension driver will be used (if available), then Utilities + bridge driver (if available), and then Pure PHP driver.

There is at least one driver in all three types, which handles zip format, so this format can be fully supported in any OS/PHP configuration:

  1. zip / phar PHP extensions
  2. Utility + bridge SevenZip / AlchemyZippy
  3. Pure NelexaZip

tar format (with compressed variants) supported by:

  1. phar PHP extension
  2. Utility + bridge SevenZip / AlchemyZippy
  3. Pure TarByPear

So, there is always one driver that supports popular formats, and you should not remember how to work with this concrete driver (zip/phar/SevenZip/AlchemyZippy/NelexaZip), interface for them is uniform.

Quick start

Installation and configuration

Install library

composer require wapmorgan/unified-archive
#Check supported formats with installed drivers
./vendor/bin/cam system:formats
#Check supported functions for zip format
./vendor/bin/cam system:format zip

Install new driver

#Read installation instructions from
./vendor/bin/cam system:drivers
#install missing drivers, for example pear/archive_tar
composer require pear/archive_tar
#check out driver functions
./vendor/bin/cam system:formats TarByPear

#if needed, install extensions, cli tools and php libraries
#to enable support of other formats


use \wapmorgan\UnifiedArchive\UnifiedArchive;

$output_dir = '/var/www/extracted';

# Extraction
$archive = UnifiedArchive::open(''); // archive.rar, archive.tar.bz2

if (disk_free_space($output_dir) < $archive->getOriginalSize()) {
    throw new \RuntimeException('No needed space available. Need ' . ($archive->getOriginalSize() - disk_free_space($output_dir)) . ' byte(s) more');

$extracted = $archive->extract($output_dir);
echo 'Number of extracted files' . $extracted.PHP_EOL;

# Archiving
    '' => '/default/path/to/',
    '' => '/folder/with/content/',
], '');

View on Github

Thank you for following this article.

Related videos:

How to Open ZIP Files With PHP

#php #file #type #detection