[FIXED] same 2 strings with different result

Issue

I am new to Python (and Flask) and have a strange problem with strings. Hope someone can tell me why the 2nd code part don't work, when both give the same output with print ? the 2nd part only give blanks in the dropdown list. Thx in advance for your support.

this works:

test=[{'name':'green.tmp'}, {'name':'red.tmp'}, {'name':'blue.tmp'}, {'name':' '}]
count = 0
for character in temp:
    count += 1
print(count)  # 81
print(test)   # [{'name':'green.tmp'}, {'name':'red.tmp'}, {'name':'blue.tmp'}, {'name':' '}]

return render_template('test_index.html', data=test )

this don't work:

path = "/var/lib/mpd/music/"
dirs = os.listdir(path)
temp = "[{'name': '"
for file in dirs:
    temp = temp + file + "'}, {'name': '"
temp = temp + " '}]"
count = 0
for character in temp:
    count += 1
print(count)  # 81
print(temp)   # [{'name':'green.tmp'}, {'name':'red.tmp'}, {'name':'blue.tmp'}, {'name':' '}]

return render_template('test_index.html', data=str(temp) )

Solution

Instead of constructing the dict like a string, try this instead.

dirs = os.listdir(path)
temp = []
for dir in dirs:
    temp.append({'name': dir})
print(temp)

Answered By - Harshith Bolar