11 — Check & Build: see the Python

nme check and nme build show what your NME really is. check asks Python whether the generated program is valid; build shows the generated Python itself.

#Steps

1. Verify a program without running it:

   nme check hello
   nme c hello
   

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   check prints nothing when the program is fine — silence means success. nme c is the shortcut.

2. See the Python your program becomes:

   nme build hello -o hello.py
   python3 hello.py
   

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   For show Hello world!, hello.py contains:

   print("Hello world!")
   

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   Reading this is how you grow into Python one line at a time.

3. Every error has a stable code. Deliberately put break outside a loop Save this as broken.nme — a break with no loop around it — and check it:

   nme c broken
   

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   The compiler prints the code, the exact line, and a hint:

   error[E0102]: `break` can only be used inside a loop
     --> broken.nme:1:1
     |
   1 | break
     | ^^^^^
     = hint: put it inside `while ... end` or `repeat ... end`
   

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4. Read the long explanation of a code in Korean or English:

   nme ko E0102
   nme en E0102
   

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   nme ko alone lists every code.

#Try it yourself

Check every guide program you wrote so far with nme c <file>, then build one and read its Python.

#What you learned

• nme check / nme c verifies without running; silence means success.
• nme build / nme b prints the generated Python; -o saves it.
• Error messages carry codes like E0102 with an exact caret and hint.
• nme ko <CODE> / nme en <CODE> explain each code.