Concatenate 2 items at a time in a Python list

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I have a list named data having the items shown as below.

a229f7d1148c27d5ff46cbf506f92a9e 
3c73dc22ddaafa58346cc5241a78d509 
c5ebe3eff60ef972fdd9a9d5e4762227 
1c720ec8c2615529e1500d77020a1dc2 
63d8e40d1c5aabbee5cf35a13a95b089 
0994bcd4f5722e3ae8620a483b83abbf 
06f628503dddc37956e586b9e537b3ae 
a229f7d1148c27d5ff46cbf506f92a9e 
3c73dc22ddaafa58346cc5241a78d509 
f6ebd290be34c47ffc84f0a4f123112a 
c5ebe3eff60ef972fdd9a9d5e4762227 
1c720ec8c2615529e1500d77020a1dc2

I want to concatenate 2 items at a time for the entire list and copy that to an output file as below:
data[index+ 1] + data[index]

3c73dc22ddaafa58346cc5241a78d509a229f7d1148c27d5ff46cbf506f92a9e

1c720ec8c2615529e1500d77020a1dc2c5ebe3eff60ef972fdd9a9d5e4762227

and so on till the end of the list.

What I have tried:

ind = 0
		while ind < len(data):
			for i in range(int(len(data)/2)):
				new_file.write("".join(data[(ind + 1): ind]))
				new_file.write("\n")
			ind += 2

But i am not getting the desired output. What am i doing wrong in the while loop?

Posted 20-Oct-20 20:31pm

Member 11362771

Updated 20-Oct-20 21:48pm

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Richard MacCutchan · Accepted Answer · 2020-10-20T21:48:00

Solution 1

Try this:

Python

for i in range(0, len(data), 2):
    next = data[i] + data[i+1]
    new_file.write(next)
    new_file.write("\n")

Posted 20-Oct-20 21:48pm

Richard MacCutchan

Comments

Member 11362771 21-Oct-20 5:47am

@Richard MacCutchan..can i convert those strings to uppercase? How do i do it if possible? .upper() seems to not work..

Richard MacCutchan 21-Oct-20 5:56am

Yes, upper works fine, see Built-in Types — Python 3.7.9 documentation[^].