String Formatting

I think string formatting will be a very big issue for pyscript in the next months/years. Maybe a generic solution similar to <pre> </pre> could be possible? I’ve seen a similar solution in a syntax highlighting library some time ago (<code> </code>). For now, the following code returns an error(in both Firefox and Chrome):

for r in range(0xff):
	color="#%02x29%02x" % (r,r)
	printdata = "<font color=\"%s\">sodjf</font>" % color
	print(printdata)

JsException(PythonError: Traceback (most recent call last): File “/lib/python3.10/site-packages/_pyodide/_base.py”, line 429, in eval_code .run(globals, locals) File “/lib/python3.10/site-packages/_pyodide/_base.py”, line 300, in run coroutine = eval(self.code, globals, locals) File “”, line 5, in TypeError: not all arguments converted during string formatting )

[animaone]

same

print('<font color="red">should be red</font>')

for r in range(0xff):
	color=f"#{r:02x}29{r:02x}"
	printdata = f"<font color=\"{color}\">should be some color</font>"
	print(printdata) 

[JeffersGlass]

I believe this is fixed by #684 - at least, the final example posted above does correctly work.

Conversations around escaping HTML-relevant characters in PyScript source are ongoing in #735 - but this specific issue is resolved.