I wanted to enter a word with upperandlower letter combination letters and then when i press enter it will change vice versa
def changer(word):
for letter in word:
if letter.isupper():
letter.lower()
elif letter.islower():
letter.upper()
print word
word = raw_input()
changer(word)
You must append the converted letters to new string, and returning the new string could be helpful, too.
def changer(word):
newWord = ""
for letter in word:
if letter.isupper():
newWord += letter.lower()
elif letter.islower():
newWord += letter.upper()
print newWord
return newWord
...you do not return anything. and strings in python are immutable; you can not change them in-place.
this is something you could try:
def swapcase(word):
return ''.join(c.lower() if c.isupper() else c.upper() for c in word)
print(swapcase(word='Hello')) # hELLO
where i use str.join to join the generator that iterates over the characters with the swapped case.
speed-wise str.translate may be the better choice:
from string import ascii_lowercase, ascii_uppercase
trans_table = str.maketrans(ascii_lowercase + ascii_uppercase,
ascii_uppercase + ascii_lowercase)
def swapcase(word):
return word.translate(trans_table)
print('Hello'.translate(trans_table)) # hELLO
Related
I have a task to write a program that replaces words like Noun, Place, PluralNoun etc.. with the word "corgi". I got the code 90% right but I'm missing the punctuation but I don't know why. Here is the code I wrote:
parts_of_speech = ["PLACE", "PERSON", "PLURALNOUN", "NOUN"]
test_string = """This is PLACE, no NOUN named PERSON, We have so many PLURALNOUN around here."""
def word_in_pos(word, parts_of_speech):
for pos in parts_of_speech:
if pos in word:
return word
return None
def play_game(ml_string, parts_of_speech):
replaced =[]
word=ml_string.split(" ")
for w in word:
print w
con = word_in_pos(w,parts_of_speech)
if con != None:
replaced.append(w.replace(con,"corgi"))
else:
replaced.append(w)
return " ".join(replaced)
print play_game(test_string, parts_of_speech)
word_in_pos() is returning the argument word in its entirety, including any punctuation in it. So when you do your replace(), you're also replacing the punctuation. Instead, just return pos from word_in_pos():
def word_in_pos(word, parts_of_speech):
for pos in parts_of_speech:
if pos in word:
return pos
return None
Result:
This is corgi, no corgi named corgi, We have so many corgi around here.
I am trying to create a simple "guess the word" game in Python. My output is something like:
String: _____ _____
Guess a word: 'e'
String:_e__o __e_e
Guess a word: 'h'
(and so on)
String: hello there
I have a function to do this, and within this function I have this code:
def guessing(word):
count = 0
blanks = "_" * len(word)
letters_used = "" #empty string
while count<len(word):
guess = raw_input("Guess a letter:")
blanks = list(blanks)
#Checks if guesses are valid
if len(guess) != 1:
print "Please guess only one letter at a time."
elif guess not in ("abcdefghijklmnopqrstuvwxyz "):
print "Please only guess letters!"
#Checks if guess is found in word
if guess in word and guess not in letters_used:
x = word.index(guess)
for x in blanks:
blanks[x] = guess
letters_used += guess
print ("".join(blanks))
print "Number of misses remaining:", len(word)-counter
print "There are", str(word.count(guess)) + str(guess)
guess is the raw input I get from the user for a guess, and letters_used is just a collection of guesses that the user has already input. What I'm trying to do is loop through blanks based on the word.index(guess). Unfortunately, this returns:
Guess a letter: e
e___
Yes, there are 1e
Help would be much appreciated!
Your code was almost correct. There were few mistakes which I have corrected:
def find_all(needle, haystack):
"""
Finds all occurances of the string `needle` in the string `haystack`
To be invoked like this - `list(find_all('l', 'hello'))` => #[2, 3]
"""
start = 0
while True:
start = haystack.find(needle, start)
if start == -1: return
yield start
start += 1
def guessing(word):
letters_uncovered_count = 0
blanks = "_" * len(word)
blanks = list(blanks)
letters_used = ""
while letters_uncovered_count < len(word):
guess = raw_input("Guess a letter:")
#Checks if guesses are valid
if len(guess) != 1:
print "Please guess only one letter at a time."
elif guess not in ("abcdefghijklmnopqrstuvwxyz"):
print "Please only guess letters!"
if guess in letters_used:
print("This character has already been guessed correctly before!")
continue
#Checks if guess is found in word
if guess in word:
guess_positions = list(find_all(guess, word))
for guess_position in guess_positions:
blanks[x] = guess
letters_uncovered_count += 1
letters_used += guess
print ("".join(blanks))
print "Number of misses remaining:", len(word)-letters_uncovered_count
print "There are", str(word.count(guess)) + str(guess)
else:
print("Wrong guess! Try again!")
def isAlpha(c):
return (ord(c) >= 65 and ord(c) <= 95) or \
(ord(c) >= 97 and ord(c) <= 122)
# testing first function
print isAlpha("D")
print isAlpha("z")
print isAlpha("!")
s = "AEIOUaeiou"
def isVowel(c):
return s.find(c) > -1
# testing second function
print isVowel("A")
print isVowel("B")
print isVowel("c")
print isVowel(" ")
print isVowel("a")
def convPigLatin_word(word):
if isVowel(word[0]):
word += "way"
while not isVowel(word[0]):
word = word[1:] + word[0]
if isVowel(word[0]):
word += "ay"
return word
# testing third function
print convPigLatin_word("This")
print convPigLatin_word("ayyyyyylmao")
def translate(phrase):
final = ""
while phrase.find(" ") != -1:
n = phrase.find(" ")
final += convPigLatin_word(phrase[0:n]) + " "
phrase = phrase[n+1:]
if phrase.find(" ") == -1:
final += convPigLatin_word(phrase)
return final
print translate("Hello, this is team Number Juan") #Should be "elloHay, isthay isway eamtay umberNay uanJay"
I tried to create a code that transform a string into pig latin. But I got stuck on the non-alphanumeric character. The while loop only works up to the comma. How can I resolve that? I don't know where to implement the isAlpha code to check for non alphanumeric character. Any advice is helpful.
You can iterate through the words of a phrase by using .split(' '). Then you can test them for special characters using .isalpha()
pigLatin = lambda word: word[1:]+ word[0]+"ay"
def testChars(word):
text = ""
for char in list(word):
if char.isalpha():
text += char
else:
return pigLatin(text)+ char
def testWords(lis):
words = []
lis = lis.split(' ')
for word in lis:
if not word.isalpha():
words.append( testChars(word) )
else:
words.append(pigLatin(word))
return (' ').join(words)
phrase = "I, have, lots of! special> characters;"
print testWords(phrase)
I'm making a hang man game. When I made the code with out a conditional and classes, it worked fine. Basically my issues with the code below are:
Only the letter "t" will match. I can't get any other letter to match.
If I enter "t" on the first try, then purposely get the next 4 letters wrong, it won't end until after 7 turns. Yet if I enter any other letter first, it will end after 4 wrong turns, like it should.
My questions....
How can I get it to match with the other letters that are in the self.word index?
Why is it not obeying the condition I set with the while loop in the main method if I enter "t" on my first try and get every other letter wrong thereafter?
class Hang():
def __init__(self):
self.turns = 0
self.word = ['t', 'h', 'i', 's']
self.empty = ["__", "__", "__", "__"]
self.wrong = []
def main(self):
while self.turns < 4:
for i in self.word:
choice = raw_input("Enter a letter a-z: ")
if choice == i:
index = self.word.index(i)
self.empty.pop(index)
self.empty.insert(index, i)
print self.empty
else:
print "Wrong"
self.wrong.append(choice)
print self.wrong
print self.empty
self.turns += 1
char1 = Hang()
char1.main()
In the game of hangman you can guess any character in the phrase in any order. But you're using a for loop to go through each character in order and it is only correct if the player correctly guesses the characters in order
Try this instead
while self.turns < 4:
choice = raw_input("Enter a letter a-z: ")
# optional, if user enters more than a single letter
if len(choice) > 1:
print "invalid choice"
continue # loop again from start
index = self.word.index(choice)
if index != -1:
# -1 indicates character in not int the string
# so this block is only executed if character is
# in the string
self.empty[index] = choice # no need to pop, you can simply change the value of the list at a given index
else:
print "wrong"
self.turns += 1
print self.empty
I am trying to write a function that takes two arguments, a string and a letter. The function should then double the number of letter in the string. For example:
double_letters("Happy", "p")
Happppy
what i have done so far;
def double_letter(strng, letter):
new_word = ""
for char in strng:
if char == letter:
pos = strng.index(char)
new_word = letter+strng[pos:]
But this is giving me the output: pppy
how can i change the function to get the output: Happppy?
Use string.replace
string = 'happy'
letter = 'p'
string = string.replace(letter, letter + letter)
print string
You could use join and iterate through the characters in your string:
def double_letters(word, letter):
return "".join(2*i if i == letter else i for i in word)