Re: indentation error in python source block

[iemacs@gmail.com]

On Fri, Nov 9, 2018 at 11:52 AM Seb <spluque@gmail.com> wrote:
>
> Hello,
>
> I believe I've hit a strange bug.  Given this file:
>
> ---<--------------------cut here---------------start------------------->---
> #+STARTUP: content indent hideblocks
> #+PROPERTY: header-args :tangle yes
> #+PROPERTY: header-args:python :session *Python*
>
> #+NAME: python_init
> #+BEGIN_SRC python :results silent :exports none
> import matplotlib as mpl
> mpl.use("Agg")
> import matplotlib.pyplot as plt
> import numpy as np
> import pandas as pd
> #+END_SRC
>
> #+NAME: test
> #+BEGIN_SRC python :results file :exports results
> beg = ["2017-07-13 15:27:31", "2017-07-13 15:28:24"]
> beg = pd.to_datetime(beg)
> end = ["2017-07-13 15:28:03", "2017-07-13 15:28:57"]
> end = pd.to_datetime(end)
> pos = np.arange(1, 3).tolist()
> experiment = pd.DataFrame(dict(index=np.arange(1, 3),
>                                beg=beg, end=end, pos=pos))
> # Mid points
> experiment["mid"] = (experiment["beg"] +
>                      (experiment["end"] - experiment["beg"]) / 2)
> fig, axs = plt.subplots(3, 1, sharex=True)
> # Shade experiment periods
> for idx, row in experiment.iterrows():
>     for ax in axs:
>         ax.axvspan(row["beg"], row["end"], facecolor="0.5")

How about adding an empty line here?

>     axs[0].annotate(row["pos"], (row["mid"], 1), ha="center",
>                     xycoords=("data", "axes fraction"))
> # TEMPORARY: limit to experiment periods
> axs[0].set_xlim(experiment["beg"].iloc[0],
>                 experiment["end"].iloc[-1])
> fig.tight_layout()
> fig.savefig("junk.png", bbox_inches="tight")
> plt.close()
> "junk.png"
> #+END_SRC
> ---<--------------------cut here---------------end--------------------->---
>
> Problem is in the second source block.  With point on the #+BEGIN line,
> hitting C-c to execute the block yields indentation errors in the
> Python process (first one):
>
> ---<--------------------cut here---------------start------------------->---
> >>>                 experiment["end"].iloc[-1])
>   File "<stdin>", line 1
>     axs[0].annotate(row["pos"], (row["mid"], 1), ha="center",
>     ^
> IndentationError: unexpected indent
> ---<--------------------cut here---------------end--------------------->---
>
> Tangling the file and running the Python script shows no error at all.
> Executing the source block from the dedicated buffer via C-c '
> (`org-edit-special') also runs without errors.  What is going on?
>
> Thanks,
> --
> Seb
>
>


-- 


Yours faithfully,

Tian Qiu