Python | Build a list of alignment strings for a range N

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Method # 1: Using List Comprehension + zfill()
A combination of the above functions can be used to accomplish this task. In this we perform the task of adding numbers using a list comprehension, and zfill () takes care of the length required for each line.

# Python3 code to demonstrate how it works
# Construct N Range Equilength String list
# using a list comprehension + zfill ()


# initialize N

N = 6


# print N

print ( " Number of elements required: " + str (N))


# initialize K

K = 3


# Construct N Range Equilength String list
# using a list comprehension + zfill ()

res = [ str (ele) .zfill (K) for ele in range (N)]


# print result

print ( "K Length range strings list:" + str (res))

Output:

 Number of elements required: 6 K Length range strings list: [’000’,’ 001’, ’002’,’ 003’, ’004’, ’005’] 

Method # 2: Using map () + string formatting
This task can also be done using the above functions. In this, we extend the length logic using string formatting. And it is used to plot the N range.

# Python3 code to demonstrate how it works
# Construct N Range Equilength String list
# using map () + string formatting


# initialize N

N = 6


# print N

print ( "Number of elements required: " + str (N))


# initialize K

K = 3


# Construct N Range Equilength String list
# using map () + string formatting

temp = ’{: 0’ + str (K) + ’}’

res = list ( map (temp. format , range (N)))


# print result

print ( "K Length range strings list:" + str (res))

Output:

 Number of elements required: 6 K Length range strings list: [’ 000’, ’001’,’ 002’, ’003’,’ 004’, ’005’] 

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Python | Build a list of alignment strings for a range N log: Questions

log

Python"s equivalent of && (logical-and) in an if-statement

5 answers

delete By delete

Here"s my code:

def front_back(a, b):
  # +++your code here+++
  if len(a) % 2 == 0 && len(b) % 2 == 0:
    return a[:(len(a)/2)] + b[:(len(b)/2)] + a[(len(a)/2):] + b[(len(b)/2):] 
  else:
    #todo! Not yet done. :P
  return

I"m getting an error in the IF conditional.
What am I doing wrong?

934

Answer #1

You would want and instead of &&.

934

Answer #2

Python uses and and or conditionals.

i.e.

if foo == "abc" and bar == "bac" or zoo == "123":
  # do something

Python | Build a list of alignment strings for a range N log: Questions

log

How do you get the logical xor of two variables in Python?

5 answers

Zach Hirsch By Zach Hirsch

How do you get the logical xor of two variables in Python?

For example, I have two variables that I expect to be strings. I want to test that only one of them contains a True value (is not None or the empty string):

str1 = raw_input("Enter string one:")
str2 = raw_input("Enter string two:")
if logical_xor(str1, str2):
    print "ok"
else:
    print "bad"

The ^ operator seems to be bitwise, and not defined on all objects:

>>> 1 ^ 1
0
>>> 2 ^ 1
3
>>> "abc" ^ ""
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: unsupported operand type(s) for ^: "str" and "str"
794

Answer #1

If you"re already normalizing the inputs to booleans, then != is xor.

bool(a) != bool(b)

We hope this article has helped you to resolve the problem. Apart from Python | Build a list of alignment strings for a range N, check other log-related topics.

Want to excel in Python? See our review of the best Python online courses 2022. If you are interested in Data Science, check also how to learn programming in R.

By the way, this material is also available in other languages:



Schneider OConnell

Moscow | 2022-12-10

Simply put and clear. Thank you for sharing. Python | Build a list of alignment strings for a range N and other issues with Python functions was always my weak point 😁. Will use it in my bachelor thesis

Julia Ungerschaft

New York | 2022-12-10

I was preparing for my coding interview, thanks for clarifying this - Python | Build a list of alignment strings for a range N in Python is not the simplest one. I am just not quite sure it is the best method

Xu Schteiner

Paris | 2022-12-10

Maybe there are another answers? What Python | Build a list of alignment strings for a range N exactly means?. Checked yesterday, it works!

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