url:http://www.cnblogs.com/hinimix/p/8016859.html
1, this list creation could be rewritten as a list literal
預先定義了一個list
list1 = [1,2,3,4] #這么用好
比
list1 = [1,2,3] #這么用不好
list1.append(4)
此時會出現該提示
解決鏈接：https://stackoverflow.com/questions/31063384/when-i-assign-a-list-to-variable-why-pycharm-give-me-a-prompt-that-is-this-list
2, unsupported operand type(s) for -: 'str' and 'int'
文件讀出來的是字符串, 輸入的是字符串，要注意強轉類型
3, write() argument must be str, not None
寫入文件的必須是字符串類型
4, TypeError: 'NoneType' object is not callable
寫裝飾器的時候，返回值的函數如果帶()就會出這個錯
def timer(func):
def test2():
start_time = time.time()
func()
end_time = time.time()
print("時間間隔是: --> %s " % (end_time - start_time) )
return test2()
正確應該這么寫
def timer(func):
def test2():
start_time = time.time()
func()
end_time = time.time()
print("時間間隔是: --> %s " % (end_time - start_time) )
return test2
返回的是test2的內存地址, 然后去調用這個地址, 而不是直接直接test2()
5, auth() takes 0 positional arguments but 1 was given
裝飾器時, 添加
6, dbm.error: db type could not be determined
d = shelve.open('shelve_test.txt')，文件名里的sheleve去掉
7， TypeError: a bytes-like object is required, not 'str'
with open('aoao.cnf', 'wb') as cfg:，打開文件不要用b，直接w
8, TypeError: key: expected bytes or bytearray, but got 'str'
加密時候應該用byte類型，而不是str
9, SyntaxError: bytes can only contain ASCII literal characters.
加密時候應該用ASCII類型，而不是漢字
10, TypeError: Level not an integer or a valid string:
level=logging.info是大寫level=logging.INFO
11, _gdbm.error: [Errno 11] Resource temporarily unavailable
不知道
12, TypeError: string indices must be integer
類型不對,看看一堆dict里面是不是有str,會導致這樣
13, ValueError: must have exactly one of create/read/write/append mode
文件打開模式有 r,w,a r+,w+,a+,我寫的是rw,不對
14,TypeError: 'builtin_function_or_method' object is not iterable
15, a bytes-like object is required, not 'str'
傳輸進去的字符串需要是byte類型
16, TypeError: write() argument must be str, not bytes
pickle dump的文件是byte類型,所以打開文件不能用w,要用wb
17, TypeError: not all arguments converted during string formatting
print("set dog %s" % dog) 沒寫全, 少寫了%s
18, TypeError: object() takes no parameters
__init__寫成了__int__
20, module 'urllib' has no attribute 'request'
因為python3.X有時候不會將子模塊自動導入進去，所以改成import url.request問題就解決了
21, TypeError: exchange_declare() got an unexpected keyword argument 'type'
將type='fanout'變成exchange_type='fanout'
22, NameError: name 'uuid' is not defined
....from uuid import uuid4
)
