Python provides some modules for you to get webpage Html source code from a URL. It includes the modules urllib ( urllib2 is not supported in python3 ), urllib3, and request. This article will show you how to use these python modules to get webpage Html source code with examples.
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This article will tell you how to use the Python pillow module Image class’s method resize() to implement a single image zoom operation and how to use it to batch modify multiple images size. It will also tell you how to create an image thumbnail using the pillow Image class’s method thumbnail().
Recently, I run the command $ sudo apt update in my Ubuntu virtual machine, it runs successfully. But after that, when I run the command $ sudo apt upgrade, it show me the warning message Waiting for cache lock: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 12827 (unattended-upgr). This article will tell
When I run the command sudo apt-get install vnc4server in ubuntu 20’s terminal, I get the error message E: Package ‘vnc4server’ has no installation candidate. This article will tell you how to fix it.
How To Fix E: Package ‘vnc4server’ Has No Installation Candidate Read More »
GCC is the abbreviation of GNU Compiler Collection. It contains a set of compilers that can compile C, C++, Objective-C, etc language-coded programs. This article will tell you how to install the latest version of GCC on Linux OS, especially Ubuntu.
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This article will tell you how to fix the error failed to create the hard disk storage D:\Work\VirtualBox-VM\Windows10\Windows10.vdi when you create a new guest virtual machine in VirtualBox.
After installing macOS on VirtualBox virtual machine, when I start it, I found the screen resolution is too low to display the whole screen bigger. So I need to change the macOS virtual machine’s screen resolution to make the screen fully fill the virtual machine’s window. This article will tell you how to do it.
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This article will tell you how to install macOS ( “HighSierra” “Mojave” “Catalina” ) on VirtualBox virtual machine using the Github open source push-button installer file macos-guest-virtualbox.sh.
How To Use macos-guest-virtualbox.sh To Install macOS On VirtualBox Read More »
After installing the virtual machine in VirtualBox, I want to change the virtual machine’s screen resolution in the virtual machine. So I click the VirtualBox Manager or Virtual Machine’s Devices —> Insert Guest Additions CD image… menu item. But it shows the error message like Unable to insert the virtual optical disk C:\Program Files\Oracle\VirtualBox\VBoxGuestAdditions.iso into