Review comments

Author: flying-sheep

README.md

@@ -131,7 +131,27 @@ to install/update.
     \input{/path/to/mytikz.tex}
     ```
    Also make sure that the packages for PGFPlots and proper Unicode support and are
-   included in the header of your document. Get the code via:
+   included in the header of your document:
+    ```latex
+    \usepackage[utf8]{inputenc}
+    \usepackage{pgfplots}
+    \DeclareUnicodeCharacter{2212}{−}
+    \usepgfplotslibrary{groupplots,dateplot}
+    \usetikzlibrary{patterns,shapes.arrows}
+    \pgfplotsset{compat=newest}
+    ```
+   or:
+    ```latex
+    \setupcolors[state=start]
+    \usemodule[tikz]
+    \usemodule[pgfplots]
+    \usepgfplotslibrary[groupplots,dateplot]
+    \usetikzlibrary[patterns,shapes.arrows]
+    \pgfplotsset{compat=newest}
+    \unexpanded\def\startgroupplot{\groupplot}
+    \unexpanded\def\stopgroupplot{\endgroupplot}
+    ```
+   You can also get the code via:
     ```python
     import tikzplotlib
     tikzplotlib.Flavors.latex.preamble()

test/helpers.py

@@ -38,7 +38,7 @@ def assert_equality(
         include_disclaimer=False,
         float_format=".8g",
         flavor=flavor,
-        **extra_get_tikz_code_args
+        **extra_get_tikz_code_args,
     )
     plt.close()
 
@@ -53,7 +53,7 @@ def assert_equality(
             include_disclaimer=False,
             standalone=True,
             flavor=flavor,
-            **extra_get_tikz_code_args
+            **extra_get_tikz_code_args,
         )
         plt.close()
         assert _compile(code, flavor) is not None, code
@@ -70,14 +70,14 @@ def _compile(code, flavor):
     os.chdir(os.path.dirname(tex_file))
 
     # compile the output to pdf
-    cmds = dict(
+    cmdline = dict(
         latex=["pdflatex", "--interaction=nonstopmode"],
         context=["context", "--nonstopmode"],
-    )
+    )[flavor]
     try:
-        subprocess.check_output(cmds[flavor] + [tex_file], stderr=subprocess.STDOUT)
+        subprocess.check_output(cmdline + [tex_file], stderr=subprocess.STDOUT)
     except subprocess.CalledProcessError as e:
-        print("pdflatex output:")
+        print(f"{cmdline[0]} output:")
         print("=" * 70)
         print(e.output.decode("utf-8"))
         print("=" * 70)