If you rely on these poorly designed systems they will fail in numerous scenarios, slow down your site, and fail in numerous versions of older browsers…too many to count. If you have one stylesheet that depends on another, the most logical thing to do is to put them in two separate files and use @import. That will make the most logical sense to the next person who looks at the code. Importing a package (or anything from inside it) intrinsically loads and executes the package’s __init__.py — that file defines the body of the package. However, it does not bind the name __init__ in your current namespace (so in this sense it doesn’t import that name).
Python: How can I import all variables?
Unless I was totally wrong somewhere, this will leave me with a feeling something is really broken in Python’s model of package and sub‑packages. This is quite a bad approach as import for me, since, for example, if an exception is raised on initialization actions, a working directory would not be restored. You’ll need to play with try..except statements to fix this. This happened to me when I moved my journal into a new directory while the JupyterLab server was running. The import broke for that journal, but when I made a new journal in the same directory I just moved to and used the same import, it worked. After that, you can easily import and use it.Whenever you want to tell Jupyter that this is system command, you should prepend !
- Once you’re at the point where optimization matters, all your CSS should be flowing through a minifier.
- Once you’re at the minified stage, is faster, as people have pointed out, so at most link to a few stylesheets and don’t @import any if at all possible.
- Cssmin combines import statements; as @Brandon points out, grunt has multiple options for doing so as well.
- You can verify whether this is the case via import _tkinter; print(_tkinter.file) in the 3.2 shell.
- Used appropriately, static import can make your program more readable, by removing the boilerplate of repetition of class names.
import X
- If I got you right, you’re using Python 3.3 from Blender but try to include the 3.2 standard library.
- Sorry for the hard words, but that’s two days I trying to work around this stupid‑like behavior.
- The import broke for that journal, but when I made a new journal in the same directory I just moved to and used the same import, it worked.
- This makes all names from the module available in the local namespace.
There is no way to “incrementally” build up a module’s path by importing the packages that lead to it. You always have to refer to the entire module name when importing. Only use it when you’d otherwise be tempted to declare local copies of constants, or to abuse inheritance (the Constant Interface Antipattern). In other words, use it when you require frequent access to static members from one or two classes. If you overuse the static import feature, it can make your program unreadable and unmaintainable, polluting its namespace with all the static members you import. Readers of your code (including you, a few months after you wrote it) will not know which class a static member comes from.
Version 2
If you face module not found in a Jupyter environment, you had to install it on a Jupyter environment instead of installing it on the command prompt. I have confirmed the working directory of the notebook is WorkingDirectory. Neither PyCharm nor VSCode can no longer resolve the import from tensorflow.keras import ….
Once you get to the point where the site needs to scale, concatenate all the CSS.
This is a bug in the current version of tensorflow, as discussed in this issue. I tried to check the versions through the PyCharm interpreter tab and this is what I saw. For some reason PyCharm isn’t aware that there are versions after 2.0 (I have the latest version of pip installed in that environment). I’m guessing this is related, but not sure what to do with that. You can verify whether this is the case via import _tkinter; print(_tkinter.file) in the 3.2 shell. Alternatively, _tkinter may live in a different directory entirely.
Basically I am wondering what is the advantage / purpose of using @import to import stylesheets into an existing stylesheet versus just adding another … In each module, two names, a and b are created, pointing to the objects 1 and 2, respectively. Many people have already explained about import vs from, so I want to try to explain a bit more under the hood, where the actual difference lies. Not in my first favorite taste (I prefer to have one import statement per imported entity), but may be the one I will personally favor. Sorry for the hard words, but that’s two days I trying to work around this stupid‑like behavior.
Never Rely on JavaScript API’s or Tricks to Manage Cascading Style Sheets!! Never use SASS, React, Modernizr, Bootstrap, or Angular to manage CSS. Always manage Cascading Style Sheets yourself using hand-written CSS text files and your site will not only run faster, but you will have total control over your websites design and your user experience.
The second line looks for a package called package.subpackage and imports module from that package. The third line just looks for a module called module and doesn’t find one. It doesn’t “re-use” the object called module that you got from the line above. What is static import in Java – JavaRevisited – A very good resource to know more about import static. The static import feature allows to access the static members of a class without the class qualification. The basic idea of static import is that whenever you are using a static class,a static variable or an enum,you can import them and save yourself from some typing.
If that path is relative to your file you could look for the path of the file you execute from, and then append the sys.path relative to your file, but i reccomend using relative imports. The specific issue you’re seeing now is likely caused by the version difference. As people have pointed out in the comments, Python 3.3 doesn’t find the _tkinter extension module. The static import declaration is analogous to the normal import declaration. However, you need to understand that you are not importing variables, just references to objects.
Usually stylesheets are independent, so it’s reasonable to include them all using . However, if they are a dependent hierarchy, you should do the thing that makes the most logical sense to do. There are occasionally situations where @import is appropriate, but they are generally the exception, not the rule.
Importing all of the static members from a class can be particularly harmful to readability; if you need only one or two members, import them individually. Used appropriately, static import can make your program more readable, by removing the boilerplate of repetition of class names. You can now use sys.path.append to append the path you pass into the function to the folders Python looks for the modules (Please note that thats not permanent). If the path of your modules should be static, you should consider putting these in the Lib folder.
It means, that interpreter cannot find the module named module1 since it is not located in either current or global packages directory. Multiple CSS requests of any kind – whether through links or through @imports – are bad practice for high performance web sites. Once you’re at the point where optimization matters, all your CSS should be flowing through a minifier.
Python: importing a sub‑package or sub‑module
Assigning something else to the imported names in the importing module won’t affect the other modules. The reason #2 fails is because sys.modules’module’ does not exist (the import routine has its own scope, and cannot see the module local name), and there’s no module module or package on-disk. Note that you can separate multiple imported names by commas. The static modifier after import is for retrieving/using static fields of a class.