Syntax -- How to Python

• basis: keine var-initialisierung, dynamische typen
• Kommentare: # -> zeilenende
• Datentypen:
  • integer, float float() int() long() eval()
  • complex a=5.0+4.4j a.imag a.real abs(a)
  • string "..." '...' """...""" '''...'''
    s+s s*5 s[a:b] len(s)
• "_" = letztes ergebnis (im Interaktiven Mode)
• komplexe typen:
  • tuple (a,b,c,...) a,b=t=a,b
  • listen [a,b,c,...] l[1] len(l)
  • dicts {a:x,b:y,...} d[a]
• control flow:
  • if bla : elif bla : else :
  • while bla :
  • for i in bla :
  • break continue pass
  • range(a [,b [,c]])
  • del
  • print
• functions:
  • def bla(args) : args:defvalues, bla(arg=blubb, arg2=1)
  • lambda a,b: a+b
• Doku: string am def/class anfang
• modules:
  • import bla
  • from bla import blubb
• exceptions:
  • try: [ except bla/(bla,blubb): else: ] [ finally: ]
  • myex="myex" raise myex,bla -> except myex: print bla
• Klassen:
  • class bla(base1,base2,base3):
    def blubb(self,arg):
  • class Complex:
    def __init__(self, realpart, imagpart):
    self.r = realpart
    self.i = imagpart
    x = Complex(3.0,-4.5)
    x.r, x.i