interpreter

问题 I am python newbie. I am doing 1 project testing of Keras. I already installed opencv by pip install opencv-python but i can't find opencv in interpreter of Pycharm and have an error when i import cv2 . My interpreter is usr/bin/python2.7 回答1: Go to project interpreter settings in preferences in Pycharm, and use the + sign there to add the module to your interpreter. This can happen when pip is installing to a directory that is not part of your project's python interpreter's PATH. Installing

问题 I am python newbie. I am doing 1 project testing of Keras. I already installed opencv by pip install opencv-python but i can't find opencv in interpreter of Pycharm and have an error when i import cv2 . My interpreter is usr/bin/python2.7 回答1: Go to project interpreter settings in preferences in Pycharm, and use the + sign there to add the module to your interpreter. This can happen when pip is installing to a directory that is not part of your project's python interpreter's PATH. Installing

问题 ok, i have this problem here. i was asked to write a function in Scheme, that takes an "environment", and an expression and it returns the value of this expression, for the variable bindings found in the enviroment. and a definition of a boolean expression is this according to the question below. edit sorry my question is what does it mean by "it takes an environment" as an argument and what exactly does the function need to do? evaluate for example "T OR F" and return "F" ??? "<expr> ::=

问题 I'm still working on a tiny parser for a tiny language defined in a task at school. The parser that generates an AST(Abstract syntax tree) is working. What I want is to check the defined variables, they must be bounded by the let expression. First the method that is defined in the task(suggestion, not needed): checkVars :: Expr -> Char data Expr = Var Char | Tall Int | Sum Expr Expr | Mult Expr Expr | Neg Expr | Let Expr Expr Expr deriving(Eq, Show) A valid sentence would be "let X be 5 in *

问题 I use anaconda's interpreter as pycharm interpreter. I wonder if all the module included in the "conda list" should appears in pycharm. In my situation, the anwser is NO, I need to install the modules which are already included in the "conda list" Is it normal? 回答1: In the Settings -> Project Interpreter you can switch to the Conda Package Manager mode. Also in the Project Interpreter drop-down menu above, make sure you are using the correct Conda Environment . 来源： https://stackoverflow.com

问题 I would like to produce plots using matplotlib (through anaconda-spider installed on os x yosemite) and put labels on it not interpreted by tex. Here is the sample code: # -*- coding: utf-8 -*- import matplotlib.pyplot as pp my_rc_param = {'text.usetex': False} pp.figure() pp.rcParams.update(my_rc_param) pp.plot(range(10)) pp.xlabel('$x$') I would like to see exactly the string $x$ as x label. In turn, I get the math-mode latex x. I have also tried, unsuccessfully, to put the following

问题 I need to invoke the Rebol language interpreter from the Android Terminal Emulator as a command that runs a script file (e.g. rebol script-name.reb ). So I'm not looking for an .APK app that launches only into the Rebol REPL, like that in https://github.com/angerangel/r3bazaar. I'd like to be able to run it as a shell command. 回答1: I cross-compiled r3 for android and seems ok. Here is the binary and here the source. Thanks @HostileFork for help and sources. 回答2: You can do this with a native

问题 I have written a small C program that embeds Python. I'm setting it up correctly using Py_Initialize() and Py_Finalize(), and am able to run scripts either using PyRun_SimpleString or PyRun_SimpleFile. However, I don't know how mimic the behavior of Python's own interpreter when printing variables. Specifically: a = (1, 2, 3) print a Works fine for me: it prints out (1, 2, 3) However: a = (1, 2, 3) a Prints out nothing at all. In Python's own interpreter, this would print out (1, 2, 3) as

问题 Recently I've read this performance guide Let's make the web faster and was puzzled by "Avoiding pitfalls with closures" recommendations (as if these advices were given for CommonLisp users where variable scoping is dynamic): var a = 'a'; function createFunctionWithClosure() { var b = 'b'; return function () { var c = 'c'; a; b; c; }; } var f = createFunctionWithClosure(); f(); when f is invoked, referencing a is slower than referencing b , which is slower than referencing c . It's quite

问题 Hello, stackoverflow I need help again :) How to change default system python interpreter? OR How to solve this? --> Problem comes after installation of anaconda2. It's not "just gnome-tweak-tool" problem of course :). It's obviously that system - somehow - run anaconda-python interpreter, instead /usr/bin/python as a default system python interpreter. Which python status--> I cannot delete Anaconda from my Opensuse Leap 42.1 system... I need just disable him for a while.. THX 回答1: Edit your