# Tutorial 10 : using var

**URL:** <https://forum.toplap.org/t/tutorial-10-using-var/672>\
**Category:** Foxdot\
**Created:** [15 July 2019 13:17 UTC](https://forum.toplap.org/t/tutorial-10-using-var/672 "2019-07-15T13:17:30Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![jean31270](https://forum.toplap.org/user_avatar/forum.toplap.org/jean31270/32/362_2.png) [@jean31270](https://forum.toplap.org/u/jean31270)\
**Post date:** [15 July 2019 13:17 UTC](https://forum.toplap.org/t/tutorial-10-using-var/672/1 "2019-07-15T13:17:30Z")

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I can not open this tutorial (even after a pip install --force-reinstall), the others work without problems. Can someone send me a copy, please?

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**Author:** ![usrfriendly](https://forum.toplap.org/letter_avatar_proxy/v4/letter/u/7993a0/32.png) [@usrfriendly](https://forum.toplap.org/u/usrfriendly)\
**Post date:** [16 July 2019 05:17 UTC](https://forum.toplap.org/t/tutorial-10-using-var/672/2 "2019-07-16T05:17:08Z")

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To give @ryan some helpful info , I thought I’d post what I got trying to open this one, in Windows 10, 64-bit.

`Exception in Tkinter callback Traceback (most recent call last): File "c:\users\arinl\appdata\local\programs\python\python37-32\lib\tkinter\ __init__.py", line 1702, in __call__ return self.func(*args) File "c:\users\arinl\appdata\local\programs\python\python37-32\lib\site-packages\FoxDot\lib\Workspace\Editor.py", line 689, in loadfile self.set_all(f.read()) File "c:\users\arinl\appdata\local\programs\python\python37-32\lib\encodings\cp1252.py", line 23, in decode return codecs.charmap_decode(input,self.errors,decoding_table)[0] UnicodeDecodeError: 'charmap' codec can't decode byte 0x9d in position 93: character maps to <undefined>`

@jean31270, [here’s the tutorials on github](https://github.com/Qirky/FoxDot/tree/master/FoxDot/demo), you’ll be looking for 10\_using\_vars.py, it’s the same file. You can click it, and click the “raw” button at the top of the code, and it’ll give you a plaintext file you can save as a .py, and load up. It’s weird that the vars one is the only one that doesn’t load from the menu, I just checked them all.

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**Author:** ![jean31270](https://forum.toplap.org/user_avatar/forum.toplap.org/jean31270/32/362_2.png) [@jean31270](https://forum.toplap.org/u/jean31270)\
**Post date:** [16 July 2019 07:09 UTC](https://forum.toplap.org/t/tutorial-10-using-var/672/3 "2019-07-16T07:09:52Z")

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Merci beaucoup pour ton aide.

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**Author:** ![ryan](https://forum.toplap.org/letter_avatar_proxy/v4/letter/r/a8b319/32.png) [@ryan](https://forum.toplap.org/u/ryan)\
**Post date:** [16 July 2019 08:27 UTC](https://forum.toplap.org/t/tutorial-10-using-var/672/4 "2019-07-16T08:27:37Z")

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It seems like it needs the text encoding specified for some reason. I’ve updated the GitHub version and will upload to PyPI later today.

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**Author:** ![usrfriendly](https://forum.toplap.org/letter_avatar_proxy/v4/letter/u/7993a0/32.png) [@usrfriendly](https://forum.toplap.org/u/usrfriendly)\
**Post date:** [18 July 2019 16:59 UTC](https://forum.toplap.org/t/tutorial-10-using-var/672/5 "2019-07-18T16:59:00Z")

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I just got the update, and Tutorial 10 works now.