2013-8-23 08:28
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=========================
彩虹炫 | 编辑 删除Big - if __name__== "__main__":
type(var);
obj.display="none" # to hide
# 1. Unix
# 2. this module
# 3. imports (modules)
# 4. variables (globals)
# 5. classes
# 6. functions
# 7. main()
#- block a statement
#. comment on the below
#.. comment on the above
# END of a block
## notes
- 彩虹炫 | 编辑 删除Big
- #. declaration and availability
class contains
properties (local var) and
methods (def func(self, ...), having its own local var),
no functions
class must be defind before be invoked
__init__() can invoke any method defined later
sub-functions of a function must be defined before be invoked
methods of a class can be invoked before be defined
#. indentation
backlash (\), tuple pair ((..)), list pair ([..]), dictionary pair ({..})
will ignore indentation
#. assignment
a = b = c ==== (a = ( b = c)) ==== b = c, then a = b
a,b = b,c ==== (a,b) = (t1,t2) = (b,c)
#. if
if cond: pass; elif cond: pass; else: pass;
try: pass; expect: pass; finally: pass;
var = a if cond else b
var = a if cond else b if cond else c
==== var = (a if cond else (b if cond else c))
#. list
LIST.sort ([func])
sorted (LIST, cmp=func2, key=func1, reverse=True)
func2 (arg1, arg2_next); func1 (arg1)
zip ((1,2,3),(7,8)) ==> [(1,7),(2,8)]
list (map (func, seq1, seq2...)); func (elm1, elm2...)
filter (func1_filter, seq)
reduce (func2, seq) ==> func2(func2(e1,e2),e3)...
#. naming of short names
xxx2 - local var in function
xxx3 - function name, class name, argument name
xxx4 - global var
#. list comprehension
[x for x in X if cond(x)]
[func(x,y) for x in X for y in Y] # len(XY) = len(X) * len(Y)
[[func(x,y) for x in X] for y in Y] # len(XY) = len(Y), len(xy) = len(X)
- 彩虹炫 | 编辑 删除Big
- __doc__
__name__
__self__
__function__
__dict__ : dictionary of attributes and their values
__dir__
__code__
__globals__
__getattr__ : attribute unfound
__getattribute__
__setattr__
__delattr__
__call__
__get__ : attribute
__set__
__delete__
__init__ : invoked as substanization (initialization)
__new__
__str__ : string to read; default:: __str__ = __repr__
__repr__ : string for eval()
dir() : list of functions in module
help() : munual of a function in module
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- HTML - ruby
html.RUBY ("base-1" + "base-0" + html.RT("title"))
title - base-0 - base-1
html.RT (html.RP("left") + "title" + html.RP("right"))
left - title - right
re.search(pattern, string, flags=0)
- return a object, with group(0)
re.findall(pattern, string, flags=0)
- return a list
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- doc <= "string"
doc['id'] <= "string"
doc['zone'] <= html.H1("Introducing Brython")
link1 = html.BR() + html.A('Brython2', href='http://www.brython.info')
link2 = html.BR() + html.A(html.B('Python'), href='http://www.python.org')
doc['zone'] <= link1 + link2
d1 = html.DIV('Brython3', style={'height':100, 'width':200})
d2 = html.DIV('Brython4',Id="zone",Class="container")
doc['zone'] <= html.BR() + d1 + "wher I am" + d2
doc['zone'] <= 'Official Python Website: ' + link
doc['zone'] <= html.P() + 'I repeat: the site is ' + link.clone()
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- from ... import ... as,
class,
def ... return ... pass,
def ... yield,
global (external var),
lambda (inline def; VAR = lambda),
assert (False, then interrution),
try ... except ... finally,
while ... continue ... break,
for (VAR in) ... continue ... break,
if ... elif ... else,
False, True,
is (same object),
None,
del,
- 彩虹炫 | 编辑 删除Big
- // bryext.js for brython.js
pyjsf = (function(){
// to load py code, in a js file as comment
// HTML loads: (1) head-script, (2) body-script, (3) body-onload
/*****
USAGE::
1. embed the py code in function as comment, in a javascript file
2. the header and footer: (remove . from /.* and *./)
header: pyjsf.load ( (function x(){/.*!
footer: *./return x}()).toString().slice(17,-12));
3. or, the header and footer: (remove . from /.* and *./)
header: pyjsf.add ( (function x(){/.*!
footer: *./return x}()).toString().slice(17,-12));
..... pyjsf.eval()
pyjsf.load ( (function x(){/.*!
def xx:
pass
yy = 3
*./return x}()).toString().slice(17,-12));
*****/
//. load together, after adding to buffer
var pyjsList = []
function add2 (src31){
pyjsList [pyjsList.length] = src31
}
function eval2 (){
for (var i=0;iload2 (pyjsList[ i])
pyjsList[ i] = ""
}
pyjsList = []
}
//. load right away
function load2 (src31){
// source:: brython.js -- function brython()
// var $src=($elt.innerHTML || $elt.textContent)
var $src = src31
__BRYTHON__.$py_module_path['__main__']='.'
try{
var $root=__BRYTHON__.py2js($src,'__main__')
var $js=$root.to_js()
eval($js)
}catch($err){
throw $err
}
}
// -- -- --
function importModule (mName){
//
var undefined
var $moduleTemp = $module || undefined
$module = undefined
var path2 = arguments[1] || "../libs/"
var script = document.createElement('script')
script.src = path2 +mName +'\.js'
//.. __BRYTHON__.brython_path+'libs/'
script.type = 'text/javascript'
script.onload = function(){
eval(mName +"=JSObject(\$module)");
$module = $moduleTemp
}
script.onreadystatechange = script.onload
document.getElementsByTagName('head')[0].appendChild(script)
}
//- importModule21 ("html")
// -- -- --
function init (){
// source:: brython.js - prython()
// part of initiation
document.$py_src={}
__BRYTHON__.$py_module_path={}
__BRYTHON__.$py_module_alias={}
__BRYTHON__.modules={}
__BRYTHON__.$py_next_hash=-Math.pow(2,53)
document.$debug=0
var options={'debug':0}
__BRYTHON__.$options=options
__BRYTHON__.exception_stack=[]
__BRYTHON__.scope={}
__BRYTHON__.path=[]
}
init()
function objToString (obj) {
var out = ''
var p;
for (p in obj) {
out += p + ': ' + obj[p] + '\n';
}
return out;
}
function objAlert (obj) {alert(objToString(obj))}
function objConsole (obj) {console.log(objToString(obj))}
function printToConsole (x) {console.log(x)}
function JSObject2 (obj){
// pythonize a js object
obj.__getattr__ = function(attr){return this[attr]}
return obj
}
//. the below from brython.js; purpose unknown
JSObject2.__class__=$type
JSObject2.__str__=function(){return ""}
JSObject2.toString=JSObject2.__str__
pyjsLink = {var:1, func:JSObject2}
pyjsLink.__getattr__ = function(attr){return this[attr]}
// -- -- --
var obj = {
test:123, pj:pyjsLink,
load:load2, add:add2, eval:eval2,
objStr:objToString, objC:objConsole, objA:objAlert,
mod:importModule,
JSObj:JSObject2, prnCon:printToConsole,
}
obj.__getattr__ = function(attr){return this[attr]}
//.. pythonize
return obj
}()); // END of pyjsf
$module = {
__getattr__ : function(attr){return this[attr]},
pj : pyjsf,
//.. pj : JSObject (pyjsf) // pythonize a js object
}
$module.__class__ = $module // defined in $py_utils
$module.__str__ = function(){return ""}
tool31 = $module
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