Introduction:
Stunt Copter is a monochrome Macintosh action game written by Duane Blehm and published by his Kansas-based company, HomeTown Software, in 1986. Blehm's other games include Cairo Shootout, ZeroGravity, and PUZZ'L.He died unexpectedly in June 1988. The game involves piloting a small helicopter around a playfield. The player has to position the helicopter and drop a person. This story, 'OS shoot-out: Windows vs. Linux' was originally published by InfoWorld Note: When you purchase something after clicking links in our articles, we may earn a small commission.
This is the #2 post of my Scrapy Tutorial Series, in this Scrapy tutorial, I will talk about basic points of Python such as Python version, Python package and show you how to install Scrapy on your Mac. In this tutorial, we would use python3 as our Python version, if you still want to use the old python2 version, just replace all python3 with python2 and pip3 with pip2 in code
Jun 22, 2020 Hi John Im enjoying this Q&A very much. Thank you for sharing your knowledge. Im really looking up to you guys and the amazing work you do! I have a question about how you deal with Mac OS, Pro Tools and plugin updates For me, Im stuck on OS 10.9.5 wi. A key tool for any Mac OS X switcher is a virtual machine to run Windows for those apps and Web sites that require it. Both Parallels Desktop 3.0 and VMware's Fusion software will do the trick.
Basic Points
Lost in sky: violent seed mac os. Even you can successfully install Scrapy on your Mac without reading the basic points here, it is still recommended to read this section carefully because you will have a better understanding of Python, Scrapy, and pip.
Python Version
The python version of your env we usually talk about is the version number of the Python interpreter. The easy way to check the version number is just type python
in your terminal.
As you can see, the default python interpreter of my Mac is 2.7.10
, this version might vary from the different OSX system. Now there are mainly two versions Python 2
and python 3
for you to choose. The difference between them is
Short version: Python 2.x is legacy, Python 3.x is the present and future of the language
If you do not have a solid reason to use python 2
, just embrace Python 3
, which is the present and future of python.
pip
pip
is the preferred installer program in Python world, for example, we can use pip to install Scrapy by typing pip install Scrapy
. It will handle all dependency for us and install them first, which is very convenient.
If you want to use pip which included with python2, use pip2
, if you want to use pip which included with python3, use pip3
, if you want to check the pip command version, just type pip -V
Quick way to install Scrapy on Mac
If you want to get started quick and dirty, just use this way. First, we install homebrew
on the Mac, which is the best package manager on Mac. In this tutorial, we would use python3 as our Python version, if you still want to use the old python2 version, just replace all python3 with python2 and pip3 with pip2
When brew is installed, we can install the latest stable python2 and python3 as you like, you should know you can install them both because two versions can coexist in your Mac now.
More decent way to install Scrapy on Mac
Scrapy installed via the code above are global so they are available across all of your projects. That can be convenient at times, but it can also become problems. So how to install Scrapy on an isolated environment? This is why virtualenv
created. On my Mac, only a few Python packages such as pip and virtualenv are globally available — other packages such as Scrapy, Django are installed in virtual environments.
After Python has been installed via brew
, we install virtualenv
If we need to activate an virtualenv, just use source $VIRTUALENV
to activate it, if we need to exit the virtualenv, just use deactivate
command.
As you can see, we use source scrapy_env/bin/activate
to activate the virtualenv, and now if you install python package, all of them would be in an isolated env, and the name of the virtualenv can be seen in the shell prompt, which means we are in an virtualenv now. If you want to know more about virtualenv, just check this good python guide. Since we are in an virtualenv, we can start to install Scrapy.
From the code above, you can see the scrapy is now located in virtualenv we just created, you can have many different Scrapy versions as you like now.
ipython shell
Ipython shell is much more powerful than python console, Scrapy shell
will use it if ipython has been installed instead of python console. I will talk about this in more detail in the future, but first, we need to install it.
Special Thank
Introduction:
Stunt Copter is a monochrome Macintosh action game written by Duane Blehm and published by his Kansas-based company, HomeTown Software, in 1986. Blehm's other games include Cairo Shootout, ZeroGravity, and PUZZ'L.He died unexpectedly in June 1988. The game involves piloting a small helicopter around a playfield. The player has to position the helicopter and drop a person. This story, 'OS shoot-out: Windows vs. Linux' was originally published by InfoWorld Note: When you purchase something after clicking links in our articles, we may earn a small commission.
This is the #2 post of my Scrapy Tutorial Series, in this Scrapy tutorial, I will talk about basic points of Python such as Python version, Python package and show you how to install Scrapy on your Mac. In this tutorial, we would use python3 as our Python version, if you still want to use the old python2 version, just replace all python3 with python2 and pip3 with pip2 in code
Jun 22, 2020 Hi John Im enjoying this Q&A very much. Thank you for sharing your knowledge. Im really looking up to you guys and the amazing work you do! I have a question about how you deal with Mac OS, Pro Tools and plugin updates For me, Im stuck on OS 10.9.5 wi. A key tool for any Mac OS X switcher is a virtual machine to run Windows for those apps and Web sites that require it. Both Parallels Desktop 3.0 and VMware's Fusion software will do the trick.
Basic Points
Lost in sky: violent seed mac os. Even you can successfully install Scrapy on your Mac without reading the basic points here, it is still recommended to read this section carefully because you will have a better understanding of Python, Scrapy, and pip.
Python Version
The python version of your env we usually talk about is the version number of the Python interpreter. The easy way to check the version number is just type python
in your terminal.
As you can see, the default python interpreter of my Mac is 2.7.10
, this version might vary from the different OSX system. Now there are mainly two versions Python 2
and python 3
for you to choose. The difference between them is
Short version: Python 2.x is legacy, Python 3.x is the present and future of the language
If you do not have a solid reason to use python 2
, just embrace Python 3
, which is the present and future of python.
pip
pip
is the preferred installer program in Python world, for example, we can use pip to install Scrapy by typing pip install Scrapy
. It will handle all dependency for us and install them first, which is very convenient.
If you want to use pip which included with python2, use pip2
, if you want to use pip which included with python3, use pip3
, if you want to check the pip command version, just type pip -V
Quick way to install Scrapy on Mac
If you want to get started quick and dirty, just use this way. First, we install homebrew
on the Mac, which is the best package manager on Mac. In this tutorial, we would use python3 as our Python version, if you still want to use the old python2 version, just replace all python3 with python2 and pip3 with pip2
When brew is installed, we can install the latest stable python2 and python3 as you like, you should know you can install them both because two versions can coexist in your Mac now.
More decent way to install Scrapy on Mac
Scrapy installed via the code above are global so they are available across all of your projects. That can be convenient at times, but it can also become problems. So how to install Scrapy on an isolated environment? This is why virtualenv
created. On my Mac, only a few Python packages such as pip and virtualenv are globally available — other packages such as Scrapy, Django are installed in virtual environments.
After Python has been installed via brew
, we install virtualenv
If we need to activate an virtualenv, just use source $VIRTUALENV
to activate it, if we need to exit the virtualenv, just use deactivate
command.
As you can see, we use source scrapy_env/bin/activate
to activate the virtualenv, and now if you install python package, all of them would be in an isolated env, and the name of the virtualenv can be seen in the shell prompt, which means we are in an virtualenv now. If you want to know more about virtualenv, just check this good python guide. Since we are in an virtualenv, we can start to install Scrapy.
From the code above, you can see the scrapy is now located in virtualenv we just created, you can have many different Scrapy versions as you like now.
ipython shell
Ipython shell is much more powerful than python console, Scrapy shell
will use it if ipython has been installed instead of python console. I will talk about this in more detail in the future, but first, we need to install it.
Special Thank
by
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For the first year to year-and-a-half of OS X's existence, one common complaint was the poor performance of available OS X browsers relative to other platforms. Most complaints were along the lines of poor rendering times and incompatibilities with some web sites, but the overarching theme was that despite having a modern OS for the first time in memory, Mac users were still second-class citizens when it came to surfing the web. There was OmniWeb 4.0 which had a beautiful rendering engine, but was slow, and Internet Explorer 5.1 which was rendered most pages accurately, but was slow. Soon, Mozilla joined the crowd. It was a large application with its own rendering engine, and it was . . . slow. Mac users had several slow web browsers to go with their slow OS.
Times have changed. Two-and-a-half years after the launch of OS X 10.0, Macs still ship with Microsoft Internet Explorer 5.2 installed and configured as the default browser. However, Mac users need not suffer with its shortcomings, as there are a plethora of web browsers for the discriminating surfer to choose from. Safari is fast becoming the most popular browser for the Macintosh, and it's overall usage share has nearly doubled since its introduction. According to the Ars Technica site log for June 2003, Safari users accounted for 7.4% of all visits to arstechnica.com compared to 8.7% for all other Mac web browsers. Of course, that other 8.7% could be any of 8 other browsers for OS X.
That's right. There are nine browsers to choose from. Which of the teeming multitude is the best? Ars rounded up the contenders, threw a few web pages at them, and took note of the results. In this browser smackdown, we wanted to look at three aspects of the browsing experience: user experience, compatibility, and speed. First, how is the interface? Does it fit well with the OS X GUI? Does it feel like a port? Does it follow common usage conventions (e.g., delete = return to previously viewed page)? Can I manage cookies easily?
Second, how compatible is the browser? Does it 'break the Internet?' Can it properly render complex sites? What about complex sites that follow standards pretty closely? How about the sites that are an absolute mess, or are coded assuming everyone in the world uses Internet Explorer 6? The ideal browser (if it exists) will be fully standards-compliant, but will still be able to accurately render as many sites as possible. The final criterion is self-explanatory: how fast are the browsers?
The applications reviewed can be grouped into 3 types based on their rendering engines: Gecko, WebCore, or proprietary. Gecko, of course, is the rendering engine developed for Mozilla.
Gecko is the revolutionary next-generation browser engine designed to support open Internet standards such as HTML 4.0, CSS 1/2, the W3C Document Object Model, XML 1.0, RDF, and JavaScript. Gecko also includes a set of complementary browser components that work alongside the layout engine to form the founding platform for the Mozilla browser and for products from commercial vendors such as Netscape 6, the AOL-Gateway browsing appliance, and others. Gecko is continuously under development at mozilla.org.
Scrappy's Shootout Mac Os 7
WebCore (and the corresponding JavaScriptCore) are used by two of the browsers under review: Safari and OmniWeb. From Apple's Developer page (which does not render properly in Safari):
WebCore is a framework for Mac OS X that takes the cross-platform KHTML library (part of the KDE project) and combines it with an adapter library specific to WebCore called KWQ that makes it work with Mac OS X technologies. KHTML is written in C++ and KWQ is written in Objective C++, but WebCore presents an Objective C programming interface. WebCore requires the JavaScriptCore framework. The current version of WebCore is based on the KHTML library from KDE 3.0.2.
The third group consists of browsers with their own rendering engines: iCab, Opera, and Internet Explorer. Let's meet our contestants. First, from the proprietary camp:
Microsoft Internet Explorer 5.2.3. IE has mirrored the up-and-down relationship between Microsoft and Apple. Internet Explorer 4.0 and 4.5 were horrible on the Mac, but not long after Microsoft and Apple signed their 5-year truce, Internet Explorer 5.0 shipped for the Mac, and it was quickly (and deservedly) recognized as the premier browser for the Macintosh. However, while IE for Windows has seen two major revisions (5.5 and 6.0), the Mac version has been limited to minor updates and security fixes. IE 5.1 was one of the first two browsers ported to OS X, and is still included in OS X installs. It is a Carbon port of the Classic Mac OS version. Microsoft has recently announced the end of IE development for the Mac (as well as a standalone application for Windows). MSIE 5.2.3 is a free application.
Opera Software's Opera 6.0.3. Version 6 shipped Fall of 2002. Opera was a late entrant to the Mac market, and there was some question as to whether they would pursue a version for OS X. 6.0.3 runs on any Mac running OS 8.6-OS X 10.2 and will run on Panther when it ships. It can also be embedded from both Carbon and Cocoa applications and offers a kiosk mode. Currently a version behind Windows, version 7 is slated for release by the end of the year. Just in case anyone doubts their commitment to the Mac platform, Mac users are greeted at their site with the headline 'Opera committed to the Mac.' Opera 6.0.3 is US$39.00 and includes a free upgrade to Opera 7.0 when it is released, although it can be run as free adware.
Scrappy's Shootout Mac Os Catalina
iCab 2.9.5 is an OS X port of the venerable Classic Mac browser. iCab was the first browser to compete with Internet Explorer and Netscape when the first preview release hit the market in 1998. At the time, it touted its small size and memory footprint as well as support for HTML standards as advantages over the Big 2, features that are not as important for most OS X users. It was also the first Mac browser to support ad blocking. After 5 years of development, it is still in the 'preview release' stage, and as such is still a free download. iCab Pro, when released, will go for US$29.00