#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()
