VPython Common Errors and Troubleshooting - Revision history

Mmorris83 at 06:51, 22 October 2019

2019-10-22T06:51:47Z

← Older revision		Revision as of 02:51, 22 October 2019
Line 1:		Line 1:
	~~Reserved to: Mary Hannah Hale Fall 2018~~
	~~Original Creator:(Lucas Christian)~~

	Programming languages can often generate obscure and confusing error messages, and VPython is no exception. This reference lists out the most common types of errors students encounter, with a brief explanation of why they happen and how to fix them.		Programming languages can often generate obscure and confusing error messages, and VPython is no exception. This reference lists out the most common types of errors students encounter, with a brief explanation of why they happen and how to fix them.

Mhale32 at 05:09, 14 November 2018

2018-11-14T05:09:00Z

← Older revision		Revision as of 01:09, 14 November 2018
Line 1:		Line 1:
	Reserved to: Mary Hannah Hale Fall 2018		Reserved to: Mary Hannah Hale Fall 2018
	(Lucas Christian)		Original Creator:(Lucas Christian)

	Programming languages can often generate obscure and confusing error messages, and VPython is no exception. This reference lists out the most common types of errors students encounter, with a brief explanation of why they happen and how to fix them.		Programming languages can often generate obscure and confusing error messages, and VPython is no exception. This reference lists out the most common types of errors students encounter, with a brief explanation of why they happen and how to fix them.

Mhale32 at 05:08, 14 November 2018

2018-11-14T05:08:40Z

← Older revision		Revision as of 01:08, 14 November 2018
Line 1:		Line 1:
			Reserved to: Mary Hannah Hale Fall 2018
	(Lucas Christian)		(Lucas Christian)

Lucasec at 21:03, 4 December 2015

2015-12-04T21:03:33Z

← Older revision		Revision as of 17:03, 4 December 2015
Line 1:		Line 1:
	(Lucas Christian)		(Lucas Christian)

	~~This reference lists out some common errors I've seen students encounter while working in VPython.~~ Programming languages can often generate obscure and confusing error messages, and VPython is no exception.		Programming languages can often generate obscure and confusing error messages, and VPython is no exception. This reference lists out the most common types of errors students encounter, with a brief explanation of why they happen and how to fix them.

	==System/Environment Errors==		==System/Environment Errors==

Lucasec: /* TypeError: '' object is not callable /

2015-12-04T21:01:49Z

TypeError: '*' object is not callable

← Older revision		Revision as of 17:01, 4 December 2015
Line 220:		Line 220:
	sphere = sphere(pos=(1,0,0), radius=2e-11, color=color.red) // Our "sphere" just replaced the "sphere" function		sphere = sphere(pos=(1,0,0), radius=2e-11, color=color.red) // Our "sphere" just replaced the "sphere" function

	If you do this, the error will not show up until you try to use the <code>sphere()</code> function later, which may be several lines after the actual mistake. Instead, simply name you <code>sphere</code> something like <code>mySphere</code> or even better, use a precise name such as <code>sphereA</code> or <code>electron</code> (assuming the sphere represents an electron). Remember, the name of variables is just a name—'''you can name your variables whatever you want (provided it ~~follows some basic rules~~), ''just don't name it after an existing function'''''.		If you do this, the error will not show up until you try to use the <code>sphere()</code> function later, which may be several lines after the actual mistake. Instead, simply name you <code>sphere</code> something like <code>mySphere</code> or even better, use a precise name such as <code>sphereA</code> or <code>electron</code> (assuming the sphere represents an electron). Remember, the name of variables is just a name—'''you can name your variables whatever you want (provided it is valid syntax), ''just don't name it after an existing function'''''.

	[[Category:VPython]]		[[Category:VPython]]

Lucasec: /* TypeError: '' object is not callable /

2015-12-04T21:01:27Z

TypeError: '*' object is not callable

← Older revision		Revision as of 17:01, 4 December 2015
Line 220:		Line 220:
	sphere = sphere(pos=(1,0,0), radius=2e-11, color=color.red) // Our "sphere" just replaced the "sphere" function		sphere = sphere(pos=(1,0,0), radius=2e-11, color=color.red) // Our "sphere" just replaced the "sphere" function

	If you do this, the error will not show up until you try to use the <code>sphere()</code> function later, which may be several lines after the actual mistake. Instead, simply name you <code>sphere</code> something like <code>mySphere</code> or even better, use a precise name such as <code>sphereA</code> or <code>electron</code> (assuming the sphere represents an electron). Remember, the name of variables is just a name—'''you can name your variables whatever you want, ''just don't name it after an existing function'''''.		If you do this, the error will not show up until you try to use the <code>sphere()</code> function later, which may be several lines after the actual mistake. Instead, simply name you <code>sphere</code> something like <code>mySphere</code> or even better, use a precise name such as <code>sphereA</code> or <code>electron</code> (assuming the sphere represents an electron). Remember, the name of variables is just a name—'''you can name your variables whatever you want (provided it follows some basic rules), ''just don't name it after an existing function'''''.

	[[Category:VPython]]		[[Category:VPython]]

Lucasec at 15:44, 4 December 2015

2015-12-04T15:44:22Z

← Older revision		Revision as of 11:44, 4 December 2015
Line 221:		Line 221:

	If you do this, the error will not show up until you try to use the <code>sphere()</code> function later, which may be several lines after the actual mistake. Instead, simply name you <code>sphere</code> something like <code>mySphere</code> or even better, use a precise name such as <code>sphereA</code> or <code>electron</code> (assuming the sphere represents an electron). Remember, the name of variables is just a name—'''you can name your variables whatever you want, ''just don't name it after an existing function'''''.		If you do this, the error will not show up until you try to use the <code>sphere()</code> function later, which may be several lines after the actual mistake. Instead, simply name you <code>sphere</code> something like <code>mySphere</code> or even better, use a precise name such as <code>sphereA</code> or <code>electron</code> (assuming the sphere represents an electron). Remember, the name of variables is just a name—'''you can name your variables whatever you want, ''just don't name it after an existing function'''''.

			[[Category:VPython]]

Lucasec: Lucasec moved page VPython Troubleshooting to VPython Common Errors and Troubleshooting

2015-12-04T15:32:06Z

Lucasec moved page VPython Troubleshooting to VPython Common Errors and Troubleshooting

← Older revision	Revision as of 11:32, 4 December 2015
(No difference)

Lucasec at 15:28, 4 December 2015

2015-12-04T15:28:24Z

← Older revision		Revision as of 11:28, 4 December 2015
Line 1:		Line 1:
	(Lucas Christian~~, page 1 of 2~~)		(Lucas Christian)

	This reference lists out some common errors I've seen students encounter while working in VPython. Programming languages can often generate obscure and confusing error messages, and VPython is no exception.		This reference lists out some common errors I've seen students encounter while working in VPython. Programming languages can often generate obscure and confusing error messages, and VPython is no exception.

Lucasec: /* Syntax Errors */

2015-12-04T15:27:57Z

Syntax Errors

@@ Line 93: / Line 93: @@
 * Variable names cannot contain dashes (-), but underscores (_) are allowed
 * Variable must not have the same name as built-in functions, statements, etc.
 == Runtime Errors ==

VPython Common Errors and Troubleshooting - Revision history

Mmorris83 at 06:51, 22 October 2019

Mhale32 at 05:09, 14 November 2018

Mhale32 at 05:08, 14 November 2018

Lucasec at 21:03, 4 December 2015

Lucasec: /* TypeError: '*' object is not callable */

Lucasec: /* TypeError: '*' object is not callable */

Lucasec at 15:44, 4 December 2015

Lucasec: Lucasec moved page VPython Troubleshooting to VPython Common Errors and Troubleshooting

Lucasec at 15:28, 4 December 2015

Lucasec: /* Syntax Errors */

Lucasec: /* TypeError: '' object is not callable /

Lucasec: /* TypeError: '' object is not callable /