A sequence of Python-based learning code

str1 = ' abced ' for I in range ( -1,-len (STR1),-1) + [None]: print str1[:i]s, t = ' abc ', ' Def ' print zip (S, t) for I, T in    Enumerate (STR1): Print I, Tprint isinstance (' foo ', str) import Stringdef checkid (): Alphas = string.letters + ' _ ' Nums = string.digits check = raw_input (' Input ID for check: ') if Len (check) > 1:if check[0] not in Alphas                    : print "Invaid id" else:for o in check[1:]: If O No in Alphas + nums: print "Invaid id" break else:print ("valid ID") def func  1 (): Alist = ["xx3", "1TC"] for I, S in Enumerate (alist): Print I, Sdef func2 (): alist = ["Hello", "Come",    "["] blist = ["Welcome", "what", "a" for I, s in Zip (alist,blist): Print I, Sdef func3 (): Alist = [] Anum = raw_input (' input>> '). Strip () for I in Anum:alist.append (i) Alist.sort () Alist.reverse () r Eturn alistdef Func4 ():   Alist = [] While true:num = Int (raw_input (' Input >> '). Strip ()) if num = = 0:break Alist.append (num) alist.sort () return alistimport keyworddef Func5 (): Alphas = string.letters Nums = Stri    Ng.digits print ' The ID check! '    str1 = raw_input (' Input ID: ') if str1 in Keyword.kwlist:print ' Invalid,it is a keyword! '        Else:if str1[0] Not in Alphas + ' _ ': print ' invalid,first symbol must be alpha or underline! ' Else:for C in str1[1:]: If C isn't in Alphas + nums:print ' Invalid,symbol mus            T be Alpha or numbers! ' print ' Valid id! '        Def showstr (): STRs = raw_input (' Input strings:: ') If Len (strs) = = 0:return False elif len (strs) = = 1: Print STRs return True for I, J in Enumerate (STRs): if i = = 0 and len (strs)! = 1:print J , strs[i+1] elif i! = 0 and I = = (len (strs)-1): Print strS[I-1] Else:print Strs[i-1], J, Strs[i+1] return truedef cmpstr (): str1 = raw_input (' Input string 1> ') str2 = raw_input (' input string2> ') If Len (str1)! = Len (str2): Return False for I, J in Enumerat E (str1): If Ord (j)-Ord (str2[i])! = 0:return False return truedef func6 (): str1 = Raw_input (' INP UT your strings:>> ') i = 0 j = Len (str1)-1 while str1[i] = = ": i = i + 1 while str1[j] = =" : j = j-1 str1 = str1[i:j+1] Print str1def func7 (): Alist = ["Zero", "one", "one", "three", "four", "FIV        E "," Six "," seven "," eight "," nine "] nlist =" while True:number = raw_input (' Input a number (0~1000): ')                If len (number) = = 0:break Else:number = str (number) for I in number: Nlist + = Alist[int (i)] + '-' return Nlist[0:-1]def Func8 (): minutes = Int (raw_input (' Input minutes: ') )) Minu = minutes% 60 hour = minutes/60 print "%d:%d"% (hour, minu) def func9 (): str1 = raw_input (' Input string:>> ') retur N Str1.swapcase () def func10 (): mystr = Raw_input (' Enter a number: ') number = Int (mystr) alist = range (1, number+1 print ' Before: ', ' alist ' i = 0 while I < Len (alist): If number% alist[i] = = 0:del Alist[i ] I = i + 1 print ' after ', Alistdef findchr (str1, char): Lchar = Len (char) if char not in Str1:retu    Rn-1 for I, J in Enumerate (STR1): If J in char:if str1[i:i+lchar] = = Char:return I     Return-1def RFINDCHR (str1, char): Lchar = Len (char) lstring = Len (str1) if char not in str1:return-1                For I, J in Enumerate (STR1): If J in char:if str1[lstring-1-i:lstring-1-i+lchar] = = Char: return i return-1def SUBCHR (string1, Origchar, Newchar): Import string return String.Replace (string1, orig Char, Newchar) def ATOC (sTrparm): CIndex = Strparm.rfind ('-') if cindex <= 0:cindex = strparm.rfind (' + ') if CIndex > 0:  Real = float (Strparm[0:cindex]) compl = float (strparm[cindex:-1]) return complex (real, compl) import Randomdef FUNC11 (): alist = ["paper", "Shears", "stone"] g = Int (raw_input (' Input 1:paper,2:shears,3:stone:> '))-1 PRI NT "Your come%s"% alist[g] r = Random.choice ([0, 1, 2]) print "Him come%s"% alist[r] if g = = R:print    ' Nobody win! '    # R Win if (R > G and G-r! =-2) or r-g = = -2:print ' him win! ' # G win Else:print ' I win! '         Import Datetimedef isleapyear (year): if (year% 4 = = 0) and (year% = 0) or (year% 4 = = 0) and (year% 100 = = 0): return True Else:return falsedef func12 (): month = {1:31,2:28,3:31,4:30,5:31,6:30,7:31,8:31,9:30,10: 31,11:30,12:31} while true:sdate = Raw_input (' input start date[dd/mm/yyyy]: '). Split ('/') dd, mm, YYYY = 0, 1, 2        SDATE[DD],SDATE[MM],SDATE[YYYY] =int (sdate[0]), int (sdate[1]), int (sdate[2]) if SDATE[MM] > or sdate[mm ] < 1:continue if Isleapyear (sdate[yyyy]): month[2] = if SDATE[DD] < 1 or SD ATE[DD] > MONTH[SDATE[MM]]: Continue break while true:edate = raw_input (' Input end DATE[DD /MM/YYYY]: Split ('/') edate[dd],edate[mm],edate[yyyy] =int (edate[0]), int (edate[1]), int (edate[2]) if edate[  MM] > or edate[mm] < 1:continue if Isleapyear (sdate[yyyy]): month[2] = if EDATE[DD] < 1 or EDATE[DD] > month[edate[mm]: Continue break

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