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Correct way to use get_or_create?
...irst_name='John',
last_name='Lennon',
defaults={'birthday': date(1940, 10, 9)},
)
# get_or_create() didn't have to create an object.
>>> created
False
Explanation:
Fields to be evaluated for similarity, have to be mentioned outside defaults. Rest of the fields have to be include...
Compress files while reading data from STDIN
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edited Feb 21 '17 at 15:43
Alex Riley
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ans...
What does SQL clause “GROUP BY 1” mean?
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244
It means to group by the first column regardless of what it's called. You can do the same with...
Android: Why does long click also trigger a normal click?
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4 Answers
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Python how to write to a binary file?
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abarnertabarnert
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Passing arguments forward to another javascript function
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edited Jan 29 '18 at 14:59
Shnatsel
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answered ...
How to get different colored lines for different plots in a single figure?
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432
Matplotlib does this by default.
E.g.:
import matplotlib.pyplot as plt
import numpy as np
x...
count members with jsonpath?
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To test size of array: jsonPath("$", hasSize(4))
To count members of object: jsonPath("$.*", hasSize(4))
I.e. to test that API returns an array of 4 items:
accepted value: [1,2,3,4]
mockMvc.perform(get(API_URL))
.andExpect(jsonPath("$", hasSize(4)));
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Is the sizeof(some pointer) always equal to four?
For example:
sizeof(char*) returns 4. As does int* , long long* , everything that I've tried. Are there any exceptions to this?
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