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Reading binary file and looping over each byte
...hile byte != "":
# Do stuff with byte.
byte = f.read(1)
finally:
f.close()
Python 2.5-2.7
with open("myfile", "rb") as f:
byte = f.read(1)
while byte != "":
# Do stuff with byte.
byte = f.read(1)
Note that the with statement is not available in versio...
Properties file in python (similar to Java Properties)
...les may not include sections so this configParser doesn't seem reliable at all
– BiAiB
Jul 17 at 9:27
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List changes unexpectedly after assignment. How do I clone or copy it to prevent this?
...
With new_list = my_list, you don't actually have two lists. The assignment just copies the reference to the list, not the actual list, so both new_list and my_list refer to the same list after the assignment.
To actually copy the list, you have various possibilit...
Using generic std::function objects with member functions in one class
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A non-static member function must be called with an object. That is, it always implicitly passes "this" pointer as its argument.
Because your std::function signature specifies that your function doesn't take any arguments (<void(void)>), you must bind the ...
Declaring abstract method in TypeScript
...(5);
}
}
The old way of mimicking an abstract method was to throw an error if anyone used it. You shouldn't need to do this any more once TypeScript 1.6 lands in your project:
class Animal {
constructor(public name) { }
makeSound(input : string) : string {
throw new Error('Thi...
How do I parse command line arguments in Bash?
...er positional arguments (also requested by the OP); and it ignores parsing-errors. Instead:
Use enhanced getopt from util-linux or formerly GNU glibc.1
It works with getopt_long() the C function of GNU glibc.
Has all useful distinguishing features (the others don’t have them):
handles spaces, ...
How do I get current date/time on the Windows command line in a suitable format for usage in a file/
...- snip -- snip ----------8<-------------
To get the code to work sans error msg's to stderr, I had to add the single quotes arount the variable assignments for %%a, %%b and %%c. My locale (PT) was causing errors at one stage in the looping/parsing where stuff like "set =20" was getting execute...
Colors in JavaScript console
...\Custom.css if you are in WinXP, but the directory varies by OS.
.console-error-level .console-message-text{
color: red;
}
.console-warning-level .console-message-text {
color: orange;
}
.console-log-level .console-message-text {
color:green;
}
...
How can I profile Python code line-by-line?
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can anyone show how to actually use this library? The readme teaches how to install, and answers various FAQs, but doesn't mention how to use it after a pip install..
– cryanbhu
Jul 25 '18 at 3:28
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Initialise a list to a specific length in Python [duplicate]
...dicts, do not use [{}]*10 -- that would give you a list with the same initially-empty dict ten times, not ten distinct ones. Rather, use [{} for i in range(10)] or similar constructs, to construct ten separate dicts to make up your list.
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