Apple TV+ on Thursday shared its first branded trailer for “Greyhound,” an upcoming WWII film starring Tom Hanks that will debut on the Apple streaming service in July.

Damien has over a decade of professional writing experience under his belt, as well as a repulsively hairy belly. Rumours that he turned down a role in The Hobbit to work on Nintendo Life are, to the best of our knowledge, completely and utterly unfounded.

PS5 And PS4 News And Announcements

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It’s certainly a good time to be into mobile strategy games set in space. NetEase has joined in the fun with Infinite Lagrange, an Eve Online-like strategy game that has landed in closed beta. If you want to get involved, you’ll need to have an Android phone handy and be in the United States, Canada, Australia, and the Philippines. The test will last between two to three weeks, and once the server closes all the game data will be deleted.

Infinite Lagrange puts you at the head of a galactic fleet and lets you travel through uncharted space. You’ll use stargates to hop from area-to-area, coming across lost cities and alien fleets from friends and foes alike. You’ll start off with three to five ships, but once you construct a space port and upgrade your tech’ you’ll be able to get more. You’ll be able to design a plethora of different ships for your varying needs, from constructing frigates for cargo to forging battlecruisers to defend yourself.

It looks like there will be plenty of different fights you’ll find yourself in, too. When not picking scraps with other players, you’ll be able to join forces with many more to take on massive space cities. NetEase even goes as far as to say fights like these will involve hundreds of players.

If you’d like to get involved, follow this link to the Google Play store. Keep in mind, though, you’ll need to be in the United States, Canada, Australia, or the Philippines for it to work. I tried it and ended up on the game’s Facebook page – woe is me.

If you’re feeling stranded as an iPhone user, you can always head over to our best iOS games list for a couple of strategy recommendations like Iron Marines or The Battle of Polytopia.

The most efficient method to join a list of Python strings in reverse order is to use the Python code ''.join(l[::-1]). First, reverse the list l using slicing with a negative step size l[::-1]. Second, glue together the strings in the list using the join(...) method on the empty string ''.

Problem: Given a list of strings. How to join the strings in reverse order?

Example: You want to join the following list

l = ['n', 'o', 'h', 't', 'y', 'p']

to obtain the joined string in reverse order

python

Let’s get a short overview on how to accomplish this.

Solution Overview: You can try the three methods in our interactive Python shell.

Next, we’ll dive into each method separately.

Method 1: Join + Slicing

The first and most Pythonic method to reverse and join a list of strings is to use slicing with a negative step size.

You can slice any list in Python using the notation list[start:stop:step] to create a sublist starting with index start, ending right before index stop, and using the given step size—which can also be negative to slice from right to left. If you need a refresher on slicing, check out our detailed Finxter blog tutorial or our focused book “Coffee Break Python Slicing”.

Here’s the first method to reverse a list of strings and join the elements together:

l = ['n', 'o', 'h', 't', 'y', 'p'] # Method 1

print(''.join(l[::-1]))

# python

The string.join(iterable) method joins the string elements in the iterable to a new string by using the string on which it is called as a delimiter.

You can call this method on each list object in Python. Here’s the syntax:

string.join(iterable)

Related articles:

• Python Join List [Ultimate Guide]
• Python Slicing [Ultimate Guide]
• How to Reverse a Python List
• The Ultimate Guide to Python Lists

Method 2: Join + reversed()

The second method is also quite Pythonic: using the reversed() built-in function rather than slicing with a negative step size. I’d say that beginners generally prefer this method because it’s more readable to them—while expert coders prefer slicing because it’s more concise and slightly more efficient.

l = ['n', 'o', 'h', 't', 'y', 'p']

print(''.join(reversed(l)))

# python

The join method glues together all strings in the list—in reversed order!

Method 3: Simple Loop

The third method is the least Pythonic one: using a loop where it’s not really needed. Anyways, especially coders coming from other programming languages like Java or C++ will often use this approach.

l = ['n', 'o', 'h', 't', 'y', 'p'] s = ''

for x in reversed(l): s += x

print(s)

# python

However, there are several disadvantages. Can you see them?

• The code is less concise.
• The code is less efficient because of the repeated string concatenation. Each loop execution causes the creation of a new string, which is highly inefficient.
• The code requires the definition of two new variables x and s and introduces a higher level of complexity.

You can see this in our interactive memory visualizer:

Exercise: click “Next” to see the memory objects used in this code snippet!

Related articles:

• Performance Tuning in Python
• List Concatenation
• Python Built-in String Functions

Where to Go From Here?

Enough theory, let’s get some practice!

To become successful in coding, you need to get out there and solve real problems for real people. That’s how you can become a six-figure earner easily. And that’s how you polish the skills you really need in practice. After all, what’s the use of learning theory that nobody ever needs?

Practice projects is how you sharpen your saw in coding!

Do you want to become a code master by focusing on practical code projects that actually earn you money and solve problems for people?

Then become a Python freelance developer! It’s the best way of approaching the task of improving your Python skills—even if you are a complete beginner.

Join my free webinar “How to Build Your High-Income Skill Python” and watch how I grew my coding business online and how you can, too—from the comfort of your own home.

Join the free webinar now!