Passing value of python variable to tikz

[runningopenloop]

I'm new to tikz and not experienced with iPython.

I was hoping to generate an image to display the locations of some calculated circles based on other code. However it does not appear to be possible? I guess the issue is at line 301 in tikzmagic.py where code is added (tex.append(code)), the code would need to be parsed and replacing variable names with variable contents?
\begin{tikzpicture}[scale=%(scale)s]
''' % locals())

    tex.append(code)

    tex.append('''

\end{tikzpicture}
\end{document}
''')

[runningopenloop]

I'm sure there is a better way to do this, but this has got me going. Also, not knowing tikz, I'm not sure if sandwiching my variable names between $ is a good idea. E.g. $myvar$

    replacements = re.findall("\$.+?\$", code)
    replacements2 = []
    for x in replacements:
        if x[1:-1] not in replacements2:
            replacements2.append(x[1:-1])

    ipy = get_ipython()

    for x in replacements2:
        code = re.sub("\$" + x + "\$", str(ipy.ev(x)), code)

    tex.append(code)

I wonder if this could be accomplished more immediately using string interpolation as it became available in Python 3.6?

[make-github-pseudonymous-again]

Any progress on that? What is currently the easiest way to display some tikz string outputed by a python function? Like

mytikzstring = x.tikz()

%%tikz
mytikzstring

There is not much progress on the original problem, however, your problem is easy to solve. Python variables can be passed in parameters, but not in the body of a TikZ cell. That is, what you can do is define a string, e.g., by

tikz_str = """
\draw[fill=red] (0,0) rectangle (1,1);
"""

or by your function, and then have a one-line %tikz cell, i.e.,

%tikz $tikz_str

That should do what you want.

[make-github-pseudonymous-again]

Thanks I will try it out!