nestpython 0.3.28

python with braces.

nestPython

"what if python, with braces, one line?"

SETUP

Install nestPython by executing:

$ pip install nestpython

After importing;

• In order to compile a string from nestPython to python, use nestpython.ncompile(string)

• In order to execute a nestPython string, use nestpython.nexec(string)

  For both, optional argument indent-level determines the indentation increment in the resulting python file. It is set to 1 by default.

• To execute and compile files and folders, use the nestpython.files module:

  • nestpython.files.ncompile(file) compiles the given file to a string
  • nestpython.files.nexec(file) executes the file
  • nestpython.files.build(dir, new_dir) builds an entire golder
  • arguments can be provided.

Use .npy for nestPython files, .npx for nestCython files.

FEATURING:

braces

Use {, ; and } instead of indentation! Indentation and newlines in the source files will be ignored. e.g.:

n = input('Enter Number: ');
if (n % 2 == 0) {
	print('n is even')
} else {
	print('n is odd')
}

Use ~{ as a shorthand for while True {.

syntactical changes

Several keywords are altered:

Python	nestPython	Python	nestPython
def	:=	del	~>
return	=>	yield	:>
in	->	and	&&
not in	!>	or	||
is	=&	:=	<-
is not	!=&	case	?
lambda	;=	;	,,
->	>:	//	~/
+= 1	++	-= 1	--
{	-{	}	}-

A variable like return will be replaced with return_ on transpilation. pass is not required: simply use {}. Note that one-liner functions can still be written with colons: := foo(): => bar

Cython keywords are also altered for .npx:

Cython	nestCython
cdef	$=
cpdef	~$=

Strings or ternaries do not have to be one-line, but if they are not, you can use \ and # like the following.

'string \
continues here'

is equivalent to

'string continues here'

and compiles to a python string with newl This is useful to make it clear that there is a space before the newline character. The backspace is simply ignored by the compiler.

Same thing can be done with code and the # character:

a if b #
else c

is equivalent to

a if b else c

The # is ignored by the compiler.

comments

• For block comments, use /*, */.
• For line comments, use //.
• Block and line comments will be ignored during compilation.
• For comments that need to be transpiled into python ones, use /|, |\ .

(to be continued)

---

github : https://github.com/slycedf/nestpy

pypi : https://pypi.org/project/nestpython