Question

我对python不太了解。我想开始研究项目，设置说明说：

pip install -r requirements-dev.txt

简单的恩赐。问题是我得到了这个：

    Downloading/unpacking gunicorn==0.13.4 (from -r requirements.txt (line 7))
  Running setup.py egg_info for package gunicorn
    Traceback (most recent call last):
      File "<string>", line 16, in <module>
      File "/tmp/pip-build-root/gunicorn/setup.py", line 18, in <module>
        long_description = file(
    NameError: name 'file' is not defined
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "<string>", line 16, in <module>

  File "/tmp/pip-build-root/gunicorn/setup.py", line 18, in <module>

    long_description = file(

NameError: name 'file' is not defined

我不明白这个问题。也许有人可以帮忙吗？

我在Arch Linux上运行它，python默认为python 3，项目不是python 3，但我不确定是不是这样。

感谢。

Answer 1

Python 3不支持

file()

改用open();见Built-in Functions - open()。

Answer 2

您的项目似乎是用Python编写的＆lt; 3.这是因为file()内置函数is removed in Python 3。尝试使用Python 2to3 tool或edit the erroneous file yourself。

编辑：BTW，project page明确提到

Gunicorn需要Python 2.x＆gt; = 2.5。 计划使用Python 3.x支持。

Answer 3

文件未在Python3中定义，您显然正在使用它。您正在安装的软件包不适合Python 3，相反，您应该安装Python 2.7并重试。

请参阅：http://docs.python.org/release/3.0/whatsnew/3.0.html#builtins

Answer 4

要解决此错误，只需添加import sys students = {} polling_active = True while polling_active: name = input("enter your name: ") score = int(input("enter your score: ")) students[name] = score repeat = input("would you like to add another student?" "(yes/no)") if repeat == 'no': polling_active = False print ("-------RESULT-------") #We will use totalScore for keeping all students score summation. #Initaly total score is 0. totalScore = 0 #For getting lowest score student name, we need lowest score first. #Initaly we don't know the lowest score. So we are assuming lowest score is maximum Int value lowestScore = sys.maxsize #We also need to store student name. We can use lowestScoreStudentName variable for storing student name with lowest score #Initaly we don't know the student name. So we initialize it as an empty student list. lowestScoreStudentName = [] #For getting maximum score student name, we need maximum score first. #Initaly we don't know the maximum score. So we are assuming lowest score is minimum Int value maximumScore = -sys.maxsize - 1 #We also need to store student name. We can use maximumScoreStudentName variable for storing student name with maximum score #Initaly we don't know the student name. So we initialize it as an empty student list. maximumScoreStudentName = [] for name, score in students.items(): totalScore = totalScore + score print(name, "your score is: ", score ) if lowestScore > score: lowestScore = score #Making student list empty, since score is lower than before lowestScoreStudentName = [] lowestScoreStudentName.append(name) elif lowestScore == score: #keeping all students in the list who gets lowest score lowestScoreStudentName.append(name) if maximumScore < score: maximumScore = score #Making student list empty, since score is higher than before maximumScoreStudentName = [] maximumScoreStudentName.append(name) elif maximumScore == score: #keeping all students in the list who gets highest score maximumScoreStudentName.append(name) total_sum = sum(list(students.values())) average_sum = totalScore/len(students) print("Average score : " + str(average_sum)) print("Lowest Score holder students name: " + str(lowestScoreStudentName)) print("Highest score holder students name: " + str(maximumScoreStudentName)) 在您的代码中！

python NameError：未定义名称'file'

4 个答案: