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Catching an exception while using a Python 'with' statement
To my shame, I can't figure out how to handle exception for python 'with' statement. If I have a code:
4 Answers
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Linq Query keeps throwing “Unable to create a constant value of type System.Object…”, Why?
...ser" with integer data type "userid" (x.User.Equals(userid))
from user in myshop.UserPermissions.Where(x => x.IsDeleted == false && x.User.Equals(userid))
and correct Query is x.UserId.Equals(userid)
from user in myshop.UserPermissions.Where(x => x.IsDeleted == false && x.U...
jQuery remove options from select
...ption with a value of 'X' from each select while running an onclick event. My code is:
8 Answers
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How to use NULL or empty string in SQL
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my best solution :
WHERE
COALESCE(char_length(fieldValue), 0) = 0
COALESCE returns the first non-null expr in the expression list().
if the fieldValue is null or empty string then: we will return the second element t...
Why should text files end with a newline?
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@BT I think you’re assuming that my example of a more convenient workflow is the reason behind the decision. It’s not, it’s just a consequence. The reason is that the POSIX rule is the rule that’s simplest, and which makes handling lines in a parser th...
How to insert a new line in Linux shell script? [duplicate]
... echo command, what if i wanted to cut it off right at Snapshot created on my bash file and make that a new bash line, without adding echo command? I think use plus + somehow right?
– blamb
Sep 7 '16 at 18:10
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How do I get the computer name in .NET
... System.Environment.GetEnvironmentVariable("COMPUTERNAME");
For more see my blog
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Warning message: In `…` : invalid factor level, NA generated
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If you are reading directly from CSV file then do like this.
myDataFrame <- read.csv("path/to/file.csv", header = TRUE, stringsAsFactors = FALSE)
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How to avoid variable substitution in Oracle SQL Developer with 'trinidad & tobago'
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My question was how this could be done without using chr(38).
– Janek Bogucki
Oct 12 '18 at 17:29
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What's the difference between deadlock and livelock?
... see:
https://preshing.com/20120226/roll-your-own-lightweight-mutex/
Is my spin lock implementation correct and optimal?
Summary:
Deadlock: situation where nobody progress, doing nothing (sleeping, waiting etc..). CPU usage will be low;
Livelock: situation where nobody progress, but CPU is s...