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ehidna [41]
1 year ago
12

Assume the variable myWord references a string. Write a statement that uses a slicing

Computers and Technology
1 answer:
givi [52]1 year ago
3 0

Answer:

"myWord[-5:]"

Explanation:

So whenever you slice a string, the syntax in python is expressed as:

string[a:b:c]

where a=start index (this is included in the sliced string)

b = end index (this is excluded from the sliced string)

c = increment

If any of these are included, they are set to default values, where a=0, b=len(string), and c=1.

The increment isn't necessary here, and it's just so you know the syntax a bit more

Anyways, I'm assuming when the question asks to display "the last 5 characters in the string" it means in order? e.g "abcdefghijk" -> "ghijk" and not "abcdefghijk" -> "kjihg"

The last piece of information to know is what a negative index represents.

For example if I have the piece of code

"

string = "hello world"

print(string[-1])

"

This will output "d", and the negative 1 represents the last letter. If you did -2, it would output the 2nd to last letter and so on.

So to print the last 5 characters, we simply use the -5 as the starting index.  

"

string = "hello world"

print(string[-5:])

"

This will print "world" or in other words, the last 5 letters. The reason for this is because the -5 in the first spot means the starting index is the 5th to last letter, and when you have the : after the -5, this is the way of telling python you're slicing the string, and not indexing 1 character. You don't need to include another value after that, because it will default to the last index of the string, or more specifically the last index + 1, since the last index is still included.

So the last thing to know, is that if the string isn't greater than 5 characters, it just prints the entire string, and no errors are raised. You can test this out your self as well. So whenever you have a string that's less than 5 characters the entire string is outputted.

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1. Extract title Write a function extract_title that takes one parameter, the filename of a GenBank formatted file, and returns
trapecia [35]

Answer:

def extract_title(file):

   import re

   a =''

   with open(file,'r') as file:

       for line in file:

           a += line

       m = re.search("^(TITLE)(.*?)(JOURNAL)", a, re.M + re.S)

       print(m.groups()[1])

extract_title('new.txt')

Explanation:

The programming language used is python 3.

The function is first defined and the regular expression module is imported.

A variable is initialized to an empty string that will hold the content of the GenBank formatted file.

The file is opened and every line in the file is assigned to the string variable. The WITH statement allows files to be closed automatically.

Regular expression is used to capture all the files between TITLE and JOURNAL in a group.

The group is printed and the function is called.

I have attached a picture of the code in action.

6 0
3 years ago
HELP PLEASE
Mashcka [7]

A typical example of a Soft skills based question will be "tell us about your interpersonal skills" and "tell us about your time management".

<h3>What are Soft skills?</h3>

Soft skills refers to skills and traits that help employees interact with others and succeed in a typical workplace.

Some example of Soft skills include:

  • interpersonal skills
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Hence, an example of a Soft skills based question will be "tell us about your interpersonal skills" and "tell us about your time management".

Read more about Soft skills

<em>brainly.com/question/8381292</em>

3 0
2 years ago
Convert (65.125)10 to octal.
grigory [225]

Answer:

101.1

Explanation:

Keep in mind that octal has 8 numbers

Step 1: Split your number in 2 parts (integer part and decimal part):

  • integer part 65
  • decimal part 0.125

Step 2: Convert the decimal part. For this step you need to multiply your decimal part and 8 (8 correspond the octal base) and get the integer part until you need it:

      0.125 * 8 =  1

So your decimal part correspond to number 1 in octal = (1)8

Step 3: Convert integer part: for this step you need to divide your integer part by 8 until you can and get the remainder

      65 / 8 = 8 remainder 1

        8 / 8 = 1 remainder 0

         1 / 8 = 0 remainder 1

Step 4: join the remainders from bottom to top and get the integer part

            101

Step 5: join the integer part and the decimal part to get the octal convertion

              101.1

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