environment

ImportError when importing numpy under Spyder from within a Python 3.7 conda environment

你离开我真会死。 提交于 2021-01-27 23:19:29
问题 I have created a conda environment named python3 on my Ubuntu virtual machine using: conda create -n python3 python=3.7 I have installed several packages under this environment, including numpy. When typing conda list , numpy shows up: When running Python from the terminal, I can import numpy just fine, but this is no longer the case when working under the Spyder IDE: I get the following error: ImportError: No module named numpy Just for the record, I have reinstalled Spyder3 from my conda

Conditional step in a pipeline

一个人想着一个人 提交于 2021-01-27 11:52:38
问题 Given a pipeline something like "A|B|C|D|E", I want to make step C conditional on the result of step B. Something like this: A | B | if [ $? -ne 0 ]; then C; else cat; fi | D | E But this doesn't seem to work; C is never executed no matter what the result of B. I'm looking for a better solution. I understand that each step of a pipeline runs in its own subshell. So I can't pass an environment variable back to the pipeline. But this pipeline is in a Gnu Parallel environment where many such

How can I persist the environment between GHCi reloads?

半腔热情 提交于 2021-01-27 03:48:55
问题 Basically when I :load name.hs the variables and bindings are gone. Is there some option to tell ghci keep it all? 回答1: To load a new module, you can use Prelude> :m + Mymodule But reloading and keeping interactive bindings is not generally possible. Reloading is essentially forgetting all modules and loading them again. The bindings could depend on already loaded modules. The dependency logic dictates that when GHCI forgets a module, it also needs to forget everything that depends on it,

How can I persist the environment between GHCi reloads?

久未见 提交于 2021-01-27 03:44:16
问题 Basically when I :load name.hs the variables and bindings are gone. Is there some option to tell ghci keep it all? 回答1: To load a new module, you can use Prelude> :m + Mymodule But reloading and keeping interactive bindings is not generally possible. Reloading is essentially forgetting all modules and loading them again. The bindings could depend on already loaded modules. The dependency logic dictates that when GHCI forgets a module, it also needs to forget everything that depends on it,

python, Windows 10: launching an application on a specific virtual desktop environment (work-spaces)

喜夏-厌秋 提交于 2021-01-22 05:47:12
问题 I have 3 different Windows 10 virtual desktops. When the computer starts up, I want python to load all of my applications in the different virtual desktops. Right now I can only start things in Desktop 1. How do I tell python to launch an app but in Desktop 2 and 3? I'm using python 3.6. 回答1: How do I tell python to launch an app but in Desktop 2 and 3? This can be achieved by launching your applications with subprocess.Popen() , then changing virtual desktop by calling GoToDesktopNumber()

python, Windows 10: launching an application on a specific virtual desktop environment (work-spaces)

烈酒焚心 提交于 2021-01-22 05:46:32
问题 I have 3 different Windows 10 virtual desktops. When the computer starts up, I want python to load all of my applications in the different virtual desktops. Right now I can only start things in Desktop 1. How do I tell python to launch an app but in Desktop 2 and 3? I'm using python 3.6. 回答1: How do I tell python to launch an app but in Desktop 2 and 3? This can be achieved by launching your applications with subprocess.Popen() , then changing virtual desktop by calling GoToDesktopNumber()

mysqli_fetch_assoc() expects parameter / Call to a member function bind_param() errors. How to get the actual mysql error and fix it?

大城市里の小女人 提交于 2020-12-15 01:54:57
问题 In my local/development environment, the MySQLi query is performing OK. However, when I upload it on my web host environment, I get this error: Fatal error: Call to a member function bind_param() on a non-object in... Here is the code: global $mysqli; $stmt = $mysqli->prepare("SELECT id, description FROM tbl_page_answer_category WHERE cur_own_id = ?"); $stmt->bind_param('i', $cur_id); $stmt->execute(); $stmt->bind_result($uid, $desc); To check my query, I tried to execute the query via