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Are lists thread-safe?
...s but keep the numbers big enough and run a few times and you will see the error
The FLAWED version
import threading
import time
# Change this number as you please, bigger numbers will get the error quickly
count = 1000
l = []
def add():
for i in range(count):
l.append(i)
tim...
How to force LINQ Sum() to return 0 while source collection is empty
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I got error when I try without ToList(), since it returns nothing. But the ToList() will make the empty list and it is not giving any error when I do ToList().Sum().
– Mona
Aug 4 '16 at 10:38
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How to delete items from a dictionary while iterating over it?
...
EDIT:
This answer will not work for Python3 and will give a RuntimeError.
RuntimeError: dictionary changed size during iteration.
This happens because mydict.keys() returns an iterator not a list.
As pointed out in comments simply convert mydict.keys() to a list by list(mydict.keys()) ...
[精华] VC中BSTR、Char和CString类型的转换 - C/C++ - 清泛网 - 专注C/C++及内核技术
...g"));
…
::SysFreeString();
Wrong:
BSTR bs = _T("Test string"); //ERROR
LPWSTR /
LPCWSTR /
WCHAR* /
wchar_t
BSTR
Right:
LPCTSTR sz1 = _T("Test String");
BSTR bs = ::SysAllocString(sz1);
…
::SysFreeString();
Wrong:
LPTSTR sz1 = _T("Test String"...
How to solve privileges issues when restore PostgreSQL Database
... aws documentation you cannot be one. I have found I have to ignore these errors.
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Greedy vs. Reluctant vs. Possessive Quantifiers
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507
I'll give it a shot.
A greedy quantifier first matches as much as possible. So the .* matches...
How to get maximum value from the Collection (for example ArrayList)?
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edited Nov 28 '17 at 13:05
nanosoft
1,97422 gold badges2929 silver badges4747 bronze badges
answered N...
How to resize a VirtualBox vmdk file
...ualbox settings).
P.S. If your new size is too small, you'll get the same error even with your new vdi file.
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How do I access my SSH public key?
...ferring to (C:/Users/Me/.ssh/.id_rsa.pub), these commands are producing an error: No such file or directory. I'm doing this from Git Bash, MyPC ~/.ssh
– sscirrus
Sep 30 '10 at 6:17
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How do Python functions handle the types of the parameters that you pass in?
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@qPCR4vir, any object can be passed as an argument. The error (an exception, the program won't "die" if it's coded to catch it, see try/except) will occur when and if an operation is attempted that the object doesn't support. In Python 3.5 you can now optionally "specify types" of...