Python中没有更改Desired_word_found变量

Question

我在python中编写一个简单的程序，该程序确定文字中是否包含一个单词。问题在于，当在文本中检测到Desired_word时，desired_word_found变量不会通过语句" desired_word_found == true"更改。我知道这与变量(desired_word_found(没有静态有关，我什至试图将变量更改为全局，但该语句仍然没有更改。我是Python的新手，需要在此方面提供一些帮助。

＃this程序确定给定单词是否在文本中

desired_word_found = False 

#retrieving necessary data 
desired_word = input("What word would you like to search for? ")
raw_text = input("Please enter the text you would like us to search: ")
words = raw_text.split()#stores each word of the text in words list 

for i in range(len(words)):#loops through list of words to determine if our desired word is contained in the list 
    if words[i] == desired_word:
        desired_word_found == True ################### VARIABLE IS NOT BEING CHANGED BY THIS STATEMENT

if desired_word_found == True:
    print(desired_word+" was found")
else:
    print(desired_word+" was not found")

Answer 1

将一个值分配给变量是由一个等于标记完成的：

desired_word_found = True