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Stop pip from failing on single package when installing with requirements.txt

I am installing packages from requirements.txt 6 Answers 6 ...
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Flask-SQLAlchemy import/context issue

...: # fields here pass And then in your application setup you can call init_app: # apps.application.py from flask import Flask from apps.members.models import db app = Flask(__name__) # later on db.init_app(app) This way you can avoid cyclical imports. This pattern does not necessitate ...
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What does extern inline do?

...e, static inline, and extern inline constructs; most pre-C99 compiler generally follow its lead. GNU89: inline: the function may be inlined (it's just a hint though). An out-of-line version is always emitted and externally visible. Hence you can only have such an inline defined in one compilatio...
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What is the best way to compute trending topics or tags?

... This problem calls for a z-score or standard score, which will take into account the historical average, as other people have mention, but also the standard deviation of this historical data, making it more robust than just using the avera...
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Python, creating objects

... = "" age = 0 major = "" # The class "constructor" - It's actually an initializer def __init__(self, name, age, major): self.name = name self.age = age self.major = major def make_student(name, age, major): student = Student(name, age, major) return...
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detach all packages while working in R

...*) is not necessary but can be useful to prevent the NULL reply from vertically spamming the R window. (edit: 9/20/2019) In version 3.6.1 It may be helpful to convert loaded only names(sessionInfo()$loadedOnly) to explicitly attached packages first, and then detach the packages, as so. lapply(names(...
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Use numpy array in shared memory for multiprocessing

... To add to @unutbu's (not available anymore) and @Henry Gomersall's answers. You could use shared_arr.get_lock() to synchronize access when needed: shared_arr = mp.Array(ctypes.c_double, N) # ... def f(i): # could be anything numpy accepts as an index such another numpy array with ...
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vbscript output to console

...aples - Not w/ the stock WScript.Echo. I suppose, if you wanted to stay totally within WScript you could do something horrifyingly dodgy like Exec'ing off another process to do a "SendKeys" to the parent process to close the MessageBox. – Evan Anderson Jun 22 '...
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What is the effect of extern “C” in C++?

...very compiler is required to provide "C" linkage A linkage specification shall occur only in namespace scope All function types, function names and variable names have a language linkage See Richard's Comment: Only function names and variable names with external linkage have a language linkage Two ...
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Reimport a module in python while interactive

... Redefinitions of names will override the old definitions, so this is generally not a problem, but if the new version of a module does not define a name that was defined by the old version, the old definition is not removed. If a module imports objects from another module using from ... import ..., ...