[英]how do i fix this, x not in list
這是這個子程序的代碼
def elimination():
global name
global contestants
global tempContestants
global lipsync_songs
global bottom_two
bottom = tempContestants[0:len(tempContestants)-1]
tempContestants.remove(bottom)
bottom1 = tempContestants[0:len(tempContestants)-1]
tempContestants.remove(bottom1)
bottom_two = [bottom, bottom1]
print(bottom_two[0], "and", bottom_two[1], "I'm sorry my dears but you are up for elimination")
lipsync()
eliminated = bottom_two[random.randint(0,len(bottom_two)-1)]
bottom_two.remove(eliminated)
safe = str(bottom_two)
print("Ladies, I have made my decision")
print(safe+", shantay you stay!")
print(eliminated+", sashay away!")
contestants.remove(eliminated)
if eliminated == name:
print("You have been eliminated!")
quit()
這是錯誤信息
tempContestants.remove(bottom)
ValueError: list.remove(x): x not in list
這是什么意思,我該如何解決?
這會重現您的錯誤:
In [644]: [1,2,3].remove(4)
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-644-181ce8c0fac7> in <module>
----> 1 [1,2,3].remove(4)
ValueError: list.remove(x): x not in list
In [645]: [1,2,3].remove(3)
看起來bottom
是數組元素的列表;
In [689]: [1,2,3].remove([1,2])
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
<ipython-input-689-9c95562dca44> in <module>
----> 1 [1,2,3].remove([1,2])
ValueError: list.remove(x): x not in list
===
bottom = tempContestants[0:len(tempContestants)-1]
tempContestants.remove(bottom)
In [691]: x = [1,2,3,4]
In [692]: bottom = x[0:len(x)-1]
In [693]: bottom
Out[693]: [1, 2, 3]
您可以迭代刪除項目:
In [694]: for i in bottom: x.remove(i)
In [695]: x
Out[695]: [4]
或者只選擇要保留的切片:
In [696]: x = [1,2,3,4]
In [698]: x[-1:]
Out[698]: [4]
此代碼將隨機丟棄最后兩名參賽者之一。 我不知道這是不是你的意圖,但我會像稻草人一樣把它扔掉。
import random
def elimination():
# get last two contestants
candidates = tempContestants[-2:]
if len(candidates) != 2:
print("Sorry, not enough players")
quit()
print("{} and {}, I'm sorry my dears but you are up for elimination".format(
*candidates))
lipsync()
# select and and remove the loser
eliminated = random.choice(candidates)
candidates.remove(eliminated)
safe = candidates[0]
tempContestants.remove(eliminated)
# report the news
print("""Ladies, I have made my decision.
{}, shantay you stay!
{}, sashay away!""".format(safe, eliminated))
# decide fate of game
if eliminated == name:
print("You have been eliminated!")
quit()
def lipsync(): pass
tempContestants = ["A", "B", "C", "D", "E", "F"]
name = "F"
elimination()
運行此程序,由於隨機選擇,您將獲得兩個可能的輸出。 一次運行結果
E and F, I'm sorry my dears but you are up for elimination
Ladies, I have made my decision.
E, shantay you stay!
F, sashay away!
You have been eliminated!
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