\t is not equivalent to \s+, but \s+ should match a tab (\t). The problem in your example is that the second pattern \s\s+ is looking for two or more whitespace characters, and \t is only one whitespace character. Here are some examples that should help you understand: \s\s+ would also match ‘ \t’, ‘\n\t’, ‘ \n \t \t\n’. Also, \s\s* is equivalent to \s+. Both will match one or more whitespace … Read more
The return statement only makes sense inside functions:
os.rename(), os.replace(), or shutil.move() All employ the same syntax: Note that you must include the file name (file.foo) in both the source and destination arguments. If it is changed, the file will be renamed as well as moved. Note also that in the first two cases the directory in which the new file is being created must … Read more
What is the line? You can just have arguments on the next line without any problems: Otherwise you can do something like this: or with explicit line break: Check the style guide for more information. Using parentheses, your example can be written over multiple lines: The same effect can be obtained using explicit line break: … Read more
If you have a list of lists, you only needed to use … per this LINK in the scipy / numpy documentation. You just needed to define dtype inside the call to asarray.
Simplest solution Use numpy.dot or a.dot(b). See the documentation here. This occurs because numpy arrays are not matrices, and the standard operations *, +, -, / work element-wise on arrays. Note that while you can use numpy.matrix (as of early 2021) where * will be treated like standard matrix multiplication, numpy.matrix is deprecated and may … Read more
Popen expect a list of strings for non-shell calls and a string for shell calls. Call subprocess.Popen with shell=True: Hopefully this solves your issue. This issue is listed here: https://bugs.python.org/issue17023
The warning offers a suggestion to rewrite as follows: However, this doesn’t fit your usage, which is equivalent to: While it’s clear that you don’t care about writes making it back to the original frame (since you are overwriting the reference to it), unfortunately this pattern cannot be differentiated from the first chained assignment example. … Read more
“2.7.0_bf4fda703454”.split(“_”) gives a list of strings: This splits the string at every underscore. If you want it to stop after the first split, use “2.7.0_bf4fda703454”.split(“_”, 1). If you know for a fact that the string contains an underscore, you can even unpack the LHS and RHS into separate variables: An alternative is to use partition(). … Read more