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#1, riverFile = open('river.txt','r')
riverTest = riverFile.read()
 riverFile.close() print(riverTest) #2,
 print(riverTest.replace(',',' ')) print(
riverTest.replace("'",' ')) print(riverTest) #3, print(riverTest.split('
 ')) riverList = riverTest.split(' ') #4,
 riverSet = set(riverList) print(
riverSet) riverDict = {} for word in
 riverSet: riverDict[word] = riverList.count(word) print(riverDict)
 for d in riverDict: print(d,riverDict
[d])#5, wordCountList = list(
riverDict.items()) print(
wordCountList) wordCountList.sort(
key=lambda x:x[1],reverse=True)
 print(wordCountList) #6, for i in
 range(20): print(wordCountList[1])
 #7, riverCountFile = open('riverCou
nt.txt',mode='a',encoding='utf-8')
 for i in range(len(wordCountList)):
 riverCountFile.write(str
(wordCountList[i][1])+'
 '+wordCountList[i][0]+'\n')
riverCountFile.close()
  

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#1,
riverFile = open('river.txt','r')
riverTest = riverFile.read()
riverFile.close()
print(riverTest)
#2,
print(riverTest.replace(',',' '))
print(riverTest.replace("'",' '))
print(riverTest)
#3,
print(riverTest.split(' '))
riverList = riverTest.split(' ')
#4,
riverSet = set(riverList)
print(riverSet)
 
riverDict = {}
for word in riverSet:
    riverDict[word] = riverList.count(word)
 
print(riverDict)
for d in riverDict:
    print(d,riverDict[d])
#5,
wordCountList = list(riverDict.items())
print(wordCountList)
wordCountList.sort(key=lambda x:x[1],reverse=True)
print(wordCountList)
#6,
for i in range(20):
    print(wordCountList[1])
#7,
riverCountFile = open('riverCount.txt',mode='a',encoding='utf-8')
for i in range(len(wordCountList)):
    riverCountFile.write(str(wordCountList[i][1])+' '+wordCountList[i][0]+'\n')
riverCountFile.close()