I want to run a python script from VBA using xlwings. I have installed the excel add-in by running
xlwings addin install
from the command prompt, however, the 'xlwings' reference is not showing up in the list of available references in my VBA project. (As a separate but perhaps connected issue, the xlwings add-in in the ribbon is only partly showing: it only shows the 'Active Workbook' and 'Advanced' subcategory.)
I am on Windows 7 Enterprise and Excel 2016
I came across the same problem. However, there was a work around. Since ultimately you want the work without alerting "no xlwings moduldes", you can manually import xlwings and xlwings_udfs modules into your current workbook then it will work. Those two modules should be available on any example spreadsheet from xlwings official website.
I just had the same issue. xlwings seems to be in the list, if you have "VBAProject (Book1)" selected before going to Tools->References.
You have to make sure that you do not have the "xlwings (xlwings.xlam)" module selected, before selecting Tools-> References.
Try removing the xlwings module from the VBA project(must be empty to remove...you should only have config settings there anyways) and installing the add-in via command line(xlwings addin install). Now when you try to edit your references, first confirm the xlwings project is visible in the VBA project directory on the left, and then select your current project and try to add a reference. Xlwings should now be in that list. I managed to resolve several issues by upgrading to the latest xlwings version - the older version Anaconda came with seemed to be missing a fair amount of functionality, mainly concerning the add-in(which as far as I can tell is superior to the module.)
Related
I would like to use PyCharm Community Edition 2020.1.2 x64 on Windows 10 as IDE for writing QGIS plugins. I need to base on old version - QGIS 2.18, so I need python 2.7, qt4, and also core modules from QGIS 2.18. I downloaded QGIS 2.18 from official site. It provides a ready to use python environment as .bat script, that sets all needed python paths. So I used path D:\Program Files\QGIS 2.18\bin\python-qgis-ltr.bat to set main python interpreter for my project.
After that I was able to run python console in PyCharm, import all QGIS modules, and any classes from QGIS standard collection like QgsFeature, QgsVectorLayer etc. Everything was fine untill I tried to import this classes from PyCharm editor in .py file as from qgis.core import QgsFeature. In editor PyCharm sees the package qgis.core and I'm able to import it, but PyCharm's code completion inside the module sees only classes that are saved in D:\Program Files\QGIS 2.18\apps\qgis-ltr\python\qgis\core\__init__.py e.g. QgsEditError class, but all standard QGIS class underlines on red.
Python console ran on exactly the same interpreter see the same sources as are visible in "External Libraries" tab in PyCharm, so command:
qgis.core.__path__ returns ['D:\\Program Files\\QGIS 2.18\\apps\\qgis-ltr\\python\\qgis\\core'],
qgis.core.__file__ returns 'D:\\Program Files\\QGIS 2.18\\apps\\qgis-ltr\\python\\qgis\\core\\__init__.pyc,
dir(qgis.core) returns full list of QGIS standard core classes.
If I run the .py script, in which PyCharm's code validator is showing incorrect import object by red underline, the script is executed without any error and I can easly print the imported QgsFeature object. Why my PyCharm's editor see different content of qgis.core module then console ran also from IDE on exactly the same interpreter?
Allow me to qualify myself. I lost interest for adventures and trail blazing in computing some time ago. I won some big battles and lost some too. And I unnecessary wasted a lot of time that could have been better spent. Nowadays, I just wait a reasonable period of time before upgrading anything, and wait a spell before downloading the newest anything, and pretty much avoid trying to do things outside a conventional path.
So your post got me curious and I looked around some. I found very little information about PyCharm being used building QGIS plugins. That pretty much tells me all I want to know: that it's not real common for PyCharm to be used in building QGIS plugins.
But there was quite abit of information about building QGIS plugins with python. There's even a QGIS Tutorial & Tips on the subject. QGIS suggests using the Qt Creator and further goes on to say that QGIS itself is written using the QT framework. "For plugin development, we use an application called Qt Creator."
If you overcome your current predicament I'd like to hear how you accomplished it.
For what it's worth, here's the link to the QGIS Tutorials & Tips.
https://www.qgistutorials.com/en/docs/building_a_python_plugin.html
Finally, the problem solved itself. It was something wrong with building a binary skeletons of C++ libraries, what PyCharm does every time the application is launched. My PyCharm didn't want to do it and I found many similar problems with other libraries (e.g. Qt) that people were struggling with. After two days my PyCharm just fixed itself and created all needed binary skeletons for my QGIS libraries.
In the company I work at, we have just started experimenting with the migration of several computation-heavy projects from Excel to Python. In this process, we have discovered xlwings and the power it can bring to the integration of Excel and Python.
Several of our projects include reading in input data from Excel worksheets, doing some background calculations, and then outputting the results to different sheets in the same workbook. From the
example projects on the xlwings website, I know it's possible to replace VBA macros (which we used so far) with Python, while keeping the Excel front-end.
However, my co-workers, who are primarily financial experts and not programmers, really like the interactivity of jupyter notebooks and would appreciate it if they could work in them during the modeling phase of the projects (rather than switching to PyCharm all of a sudden).
All in all, the ideal workflow would look like this for us:
Inputting from Excel sheets, doing some modeling and model calibration in Python through jupyter notebooks, running some tests, then if we're at a final stage, then outputting to Excel. A key constraint is that the end-users of our models are used to the VBA-like functionality (eg. Run buttons in Excel).
So my question is the following:
Is it possible to call and run a jupyter notebook from Excel as it was a .py file (ie. through the RunPython function)? This way, I assume that we could avoid the intermediate step of "converting" the models from .ipynb to .py, not to mention having two code versions of the same model.
Thank you for any suggestions!
Look here: https://github.com/luozhijian/jupyterexcel with using 'def'. That creates functions callable in Jupyter.
Thanks for the replies!
We started experimenting with nbconvert as #Wayne advised, and basically wrote a small wrapper .py code that can be called in the Excel macro via RunPython and that runs the specified notebook as-is. In the notebook, interaction between Excel and jupyter (eg. reading parameter data in from Excel and outputting values from jupyter to Excel) is handled by xlwings in turn.
I'm not sure it is the most optimal solution concerning execution speed though. However, in our case it works just fine and so far we haven't experienced any additional overhead that would hinder user experience.
This is possible with xlOil (disclaimer: I wrote it). The relevant docs are here.
The summarised procedure is: install xloil
pip install xloil
xloil install
Then edit %APPDATA%\xloil\lxloil.ini to add a reference to xloil.jupyter. Then in an Excel cell type
=xloJpyConnect("MyNotebook.ipynb")
Where you have "MyNotebook.ipynb" loaded in a local jupyter kernel. Then you can execute code on the kernel with:
=xloJpyRun(<result of connect func>, "{} + {} * {}", A1, B1, C1)
Or watch a global variable in the kernel with:
=xloJpyWatch(<result of connect func>, "variable_to_watch")
Or you can add a decorator #xloil.func to functions defined in the kernel to make them appear as Excel worksheet functions.
It sounds like this is what you want https://towardsdatascience.com/python-jupyter-notebooks-in-excel-5ab34fc6439
PyXLL and the pyxll-jupyter package allows you to run a Jupyter notebook inside of Excel and seamlessly interact with Excel from Python. You can also write Python functions in the notebook and call them from Excel as a user defined function or macro.
From the article:
"""
It used to be an “either/or” choice between Excel and Python Jupyter Notebooks. With the introduction of the PyXLL-Jupyter package now you can use both together, side by side.
In this article I’ll show you how to set up Jupyter Notebooks running inside Excel. Share data between the two and even call Python functions written in your Jupyter notebook from your Excel workbook!
"""
If the above link doesn't work you can also find it here https://www.pyxll.com/blog/python-jupyter-notebooks-in-excel/
I am brand new to FreeCAD and fairly new to python in general.
I have a project going on in which I have a list of several hundred (x,y) coordinates stored in two columns in an Excel doc. These points define a slice of an elevation profile. What I'm needing to do is draw a line/shape in FreeCAD using these points that can then be extruded into an extended version of this shape. Since the data is currently in excel, I'm leaning towards using pandas to access it, but I'm open to other ideas.
The problem I'm having with this line of thinking so far is that I can't figure out a way to access pandas from inside FreeCAD, so I've been attempting to use Winpython(2.7.10) through the Spyder ide to import FreeCAD(0.16) and pandas into the same script. I've tried adding both the Freecad/bin and Freecad/lib folders to my path (using this recommended method https://www.freecadweb.org/wiki/Embedding_FreeCAD/en), but have yet to have any success importing.
The error is: "DLL load failed: The specified procedure could not be found." .... Searching around, I can't seem to find FreeCad.dll or FreeCAD.so anywhere in my install, yet FreeCAD runs normally when used independently.
To summarize: Wanting to run FreeCAD through an external python console in order to access excel data through pandas (which doesn't seem to be available within FreeCAD itself). In doing so, I get an error and FreeCAD isn't accessible. It might be a version compatibility issue, or something more complex.
If you made it here, thank you for taking the time to read through my fairly complex/niche problem. Please feel free to suggest any more elegant alternatives, as I said, I'm new to this and likely haven't come across all possible solutions.
Thank you
I'm not exactly certain what "pandas" is - a quick search didn't reveal anything except the game engine Panda3D and the animal itself...
As for accessing data external to FreeCAD, this is something I've been exploring myself lately. At the moment, some success has been achieved by starting FreeCAD in server mode and having it watch an excel file, then running python script when it changes.
This approach would allow you to parse an Excel file using commonly available python libraries for that purpose.
EDIT:
Having been informed on just what pandas is, it seems odd you can't make it work with FreeCAD. However, there could be a number of causes:
Old version. FreeCAD is undergoing really significant change right now. Ensure you're using the latest stable release (0.17 - Roland), but I'd recommend getting your hands on the latest 0.18-dev release
Incorrect python version - FreeCAD currently is built on Py2, though Py3 builds are possible (I run FreeCAD / Py3 on my linux machine). Ensure you've installed pandas appropriately to match the python version FreeCAD depends upon (Py2, most likely).
Invalid install - If you know pandas imports and works in the python interpreter itself, try importing and running pandas code from the FreeCAD python console.
I've been searching for the best way to use Python functions within excel/VBA. I tried pyxll for a month (their free trial), but I found it very unreliable.
I've found now three other possibilities: ExcelPython, DataNitro and xlwings. Any suggestions? Which one is the most widely used in the Python community?
I have settled on xlwings for right now. I had to go through the following steps to get xlwings setup, maybe it'll help someone else down the road to have a more clear roadmap of needed items.
Process for my setup to get XLWINGS running
Python 3.4
MS C++ 2010
Pywin32
pip install xlwings
I want to be able to access .xlsx files from Python 2.5.
Newest version of xlrd support .xlsx but not Python 2.5, and older versions of xlrd support Python 2.5 but not .xlsx.
I can't make openpyxl work. (See related question Install Openpyxl on python2.5 on Windows)
Finally I'm trying running Excel using win32, but it collides with existing instances of Excel open, it's a bit hackish.
Are there other alternatives?
There is one I know of : Pywin32. The latest version(build 219 from May 2014) is compatible all the way back to Python 2.3, you must just download the right version.
Now, the big trouble with Pywin32 is that it's badly documented and that without prior knowledge of COM/Visual Basic it's a pain to start rolling. Once you do and can just copy/paste macro code generated by excel it gets far easier.
This is what you want to do to get rolling :
import win32com.client
excel = win32com.client.Dispatch('Excel.Application')
If you then type, say excel.Workbooks.Add() you create a grand new excel workbook(you need to assign that to a variable to use it). So yeah, there is an alternative, but there is a learning curve involved.
PS :
You'll want to check out the Workbooks and Worksheets methods.