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2 VERSIONS OF PYTHON ON MAC INSTALL
2 VERSIONS OF PYTHON ON MAC UPDATE
2 VERSIONS OF PYTHON ON MAC UPGRADE
2 VERSIONS OF PYTHON ON MAC CODE
2 VERSIONS OF PYTHON ON MAC DOWNLOAD

The auto conversion doesn’t do the complete porting.

2 VERSIONS OF PYTHON ON MAC INSTALL

Use either pip3 or pip3.x (pip3.6 for example) to install packages based on the installed Python 3 version. Later during the runtime, either use python 3 command or python in python 3 virtual env. To setup Python 3 from scratch, run the below commands on a new host with major supported platforms.

See the testrunner p圓 commits for changes Python 3 Setup

urllib.request, urllib.error, urllib.parse.

sorted() should have key.Įxample: sorted(expected_result,key=(lambda x: x)) For general dict/list comparison, you can use below:ĭiffs = DeepDiff(actual_result, expected_result, ignore_order = True ) if diffs:ĭiffs = DeepDiff( set (actual_indexes), set (indexes_names), ignore_order = True, ignore_string_type_changes = True ) Lists are lazy loaded (when an element is accessed, then only loaded into memory)ĭictionaries can be compared by default or against 2 dict.ĭictionaries can’t be compared directly. Lists are directly loaded (all elements loaded into memory when list is used) Use decode() to get the string, encode() to get bytes.

2 VERSIONS OF PYTHON ON MAC CODE

To get an idea on the key changes, here is the summary list of code changes needed from Python 2 to Python 3.īinary data is represented as b prefix: bytes

2 VERSIONS OF PYTHON ON MAC DOWNLOAD

See more details on the release at Python releases download and Python 3 documentation. You can pick the latest Python 3.x version (it depends on the pre-release, stable, security-fixes version on a specific platform, 3.7 or 3.6), which we are referring to as Python 3 throughout this blog. Our aim in sharing our learnings is to help you with your own migration. Some of the problems you’ll read about we identified during the porting process.

2 VERSIONS OF PYTHON ON MAC UPGRADE

Our goal now is to completely switch to Python 3 runtime instead of co-running with both Python 3 and Python 2.Īs part of the Python upgrade process, we have identified the major changes needed to successfully port to version 3. The TestRunner git repository can be found at. The Couchbase functional testing framework, TestRunner has been developed in Python 2. Updating python from version 2 to version 3 is important.Ĭouchbase is an open source Enterprise-class MultiCloud to Edge NoSQL Database.

2 VERSIONS OF PYTHON ON MAC UPDATE

As you’ll see we manually update python by command line after kick-starting with an automated process. This document is a collection of tips and tricks we learned while upgrading to Python 3 along with common problems we encountered during the Couchbase test infra migration process. As a team, we decided it’s better to migrate as close to this date as possible so that we are on the same page with other Python community members and learn alongside them. Even if the team crosses the bug fix support deadline, it’s ok (because your code is still working). Instead, version 2 will go unsupported, forcing many - including us here at Couchbase - to prioritize migration. Let’s be fair here: few of us would bother with migration if the new Python updates were backwards compatible. Why don’t teams just jump start on this migration? One of the major hurdles is that the majority of working code simply breaks (read more at why-was-python-3-made-incompatible-with-python-2 ), either because of the direct language syntax or issues with third party APIs. If you haven’t yet done so, now is a good time to migrate the current Python 2 code to Python 3 syntax and stick to Python 3 going forward. So, Python 2 is entering into unsupported mode by the end of this year. Support officially stops January 1 2020, but the final release will occur after that date.” According to the website for the programming language, the final Python upgrade release date is still TBD: “Being the last of the 2.x series, 2.7 will receive bugfix support until 2020. What you write with Python 2.x versions may not function properly when using 3.x. Please take this seriously and plan accordingly: Python updates to 3.x are not backward compatible. A future version of pip will drop support for Python 2.7.” Please upgrade your Python as Python 2.7 won’t be maintained after that date. “DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. If so, then you may be seeing the below deprecation message as a reminder to update the Python version you’re working with. And yet there is a good chance that you are still working on the Python 2 product or test code. The last major Python upgrade - to version 3 - arrived in Dec.