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What does “@@ -1 +1 @@” mean in Git's diff output?
I've been collecting data from the information returned from
3 Answers
3
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How to remove EXIF data without recompressing the JPEG?
...IF information (including thumbnail, metadata, camera info... everything!) from JPEG files, but I don't want to recompress it, as recompressing the JPEG will degrade the quality, as well as usually increasing the file size.
...
How to clone all remote branches in Git?
...ou will see
Branch experimental set up to track remote branch experimental from origin.
Switched to a new branch 'experimental'
That last line throws some people: "New branch" - huh?
What it really means is that the branch is taken from the index and created locally for you. The previous line is a...
How to round a number to significant figures in Python
..., -3)
1000.0
Thus if you need only most significant digit:
>>> from math import log10, floor
>>> def round_to_1(x):
... return round(x, -int(floor(log10(abs(x)))))
...
>>> round_to_1(0.0232)
0.02
>>> round_to_1(1234243)
1000000.0
>>> round_to_1(13)
...
Best way to merge two maps and sum the values of same key?
...p is just a set of values, together with an operator that takes two values from that set, and produces another value from that set. So integers under addition are a semigroup, for example - the + operator combines two ints to make another int.
You can also define a semigroup over the set of "all m...
How to set a Django model field's default value to a function call / callable (e.g., a date relative
...u are not defining a function, so function default values are irrelevant:
from datetime import datetime, timedelta
class MyModel(models.Model):
# default to 1 day from now
my_date = models.DateTimeField(default=datetime.now() + timedelta(days=1))
This last line is not defining a function; it ...
How do you calculate the average of a set of circular data? [closed]
...erage of a set of circular data. For example, I might have several samples from the reading of a compass. The problem of course is how to deal with the wraparound. The same algorithm might be useful for a clockface.
...
Proper way to declare custom exceptions in modern Python?
... MyException: My hovercraft is full of eels.
If you want more flexibility from the exception, you could pass a dictionary as the argument:
raise MyException({"message":"My hovercraft is full of animals", "animal":"eels"})
However, to get at those details in an except block is a bit more complica...
How can I perform a culture-sensitive “starts-with” operation from the middle of a string?
...der the problem of many<->one/many casemappings first and separately from handling different Normalization forms.
For example:
x heiße y
^--- cursor
Matches heisse but then moves cursor 1 too much. And:
x heisse y
^--- cursor
Matches heiße but then moves cursor 1 too less.
This w...
Getting individual colors from a color map in matplotlib
... do
rgba = cmap(0.5,bytes=True)
So to simplify the code based on answer from Ffisegydd, the code would be like this:
#import colormap
from matplotlib import cm
#normalize item number values to colormap
norm = matplotlib.colors.Normalize(vmin=0, vmax=1000)
#colormap possible values = viridis, j...