anchor.diff:  (in-package #:py-format-tests)
   
   (define-test py-format
  -  (assert-equal "ABC" (py-format:py-format 'abc ""))
  +  (assert-equal "ABC" (py-format:py-format :abc ""))
     (assert-equal "1" (py-format:py-format 1 ""))
     (assert-equal "NIL" (py-format:py-format nil ""))
     (assert-equal "(1 2 3)" (py-format:py-format '(1 2 3) ""))
  
positive.code:     (assert-error 'key-error (py-format:py-getitem string-to-square "12"))))
  
  (define-test py-formatter-convert-field
    (assert-equal "ABC" (py-format::py-formatter-convert-field 'abc #\s))
    (assert-equal "1" (py-format::py-formatter-convert-field 1 #\s))
    (assert-equal "NIL" (py-format::py-formatter-convert-field nil #\s))
    (assert-equal "(1 2 3)" (py-format::py-formatter-convert-field '(1 2 3) #\s))
    (assert-equal "string" (py-format::py-formatter-convert-field "string" #\s))
  
    (assert-equal "ABC" (py-format::py-formatter-convert-field 'abc #\r))
    (assert-equal "1" (py-format::py-formatter-convert-field 1 #\r))
    (assert-equal "NIL" (py-format::py-formatter-convert-field nil #\r))
    (assert-equal "(1 2 3)" (py-format::py-formatter-convert-field '(1 2 3) #\r))
  
negative.code:   (assert-equal "string" (py-format:py-str "string")))
  
  (define-test py-repr
    (assert-equal ":ABC" (py-format:py-repr :abc))
    (assert-equal "1" (py-format:py-repr 1))
    (assert-equal "NIL" (py-format:py-repr nil))
    (assert-equal "(1 2 3)" (py-format:py-repr '(1 2 3)))
  