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epifanio/gist:98698db4f23a7cc9f4b97d2cb1d13ba7

Created October 5, 2019 18:45
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gistfile1.txt
name = 'n'
type = 't'
stored = 'true'
data = '{\n "add-field":{\n "name":"%s",\n "type":"%s",\n "stored":%s }\n}' % (name, type, stored)
data
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epifanio commented Oct 5, 2019

attempt to use f-string:

data = f'{\n  "add-field":{\n     "name":"{name}",\n     "type":"{type}",\n     "stored":{stored} }\n}'

return the error:

  File "<ipython-input-24-2c1b73586698>", line 1
    data = f'{\n  "add-field":{\n     "name":"{name}",\n     "type":"{type}",\n     "stored":{stored} }\n}'
          ^
SyntaxError: f-string expression part cannot include a backslash

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epifanio commented Oct 5, 2019

while using str.format() :

data = '{\n  "add-field":{\n     "name":"{name}",\n     "type":"{type}",\n     "stored":{stored} }\n}'.format(name=name, type=type, stored=stored)

i got:

---------------------------------------------------------------------------
KeyError                                  Traceback (most recent call last)
<ipython-input-26-1c58c43a20c5> in <module>
----> 1 data = '{\n  "add-field":{\n     "name":"{name}",\n     "type":"{type}",\n     "stored":{stored} }\n}'.format(name=name, type=type, stored=stored)

KeyError: '\n  "add-field"'

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