Resolves failure to build binder

README.md

@@ -7,7 +7,7 @@ for Binder. This repository also makes use of [JupyterLab Latex](https://github.
 
 * `apt.txt` for apt-installing the latex components
 * `environment.yml` for installing the python dependencies
-* `postBuild` for forcing matplotlib to build the font cache and for installing JupyterLab Latex.
+* `postBuild` for forcing matplotlib to build the font cache
 
 Thanks to [m-weigand](https://github.com/m-weigand) for giving
 [inspiration for this repo](https://github.com/m-weigand/binder-example-latex-mpl/blob/master/index.ipynb)!

apt.txt

@@ -1,7 +1,7 @@
 dvipng
 ghostscript
 texlive-fonts-recommended
-texlive-generic-recommended
+texlive-plain-generic
 texlive-latex-base
 texlive-latex-extra
 texlive-latex-recommended

index.ipynb

@@ -38,7 +38,7 @@
    ],
    "source": [
     "fig, ax = plt.subplots()\n",
-    "ax.text(.5, .5, \"\\LaTeX $r_{ez}^{ul}$!!!!!!\", fontsize=30, horizontalalignment='center')\n",
+    "ax.text(.5, .5, r\"\\LaTeX $r_{ez}^{ul}$!!!!!!\", fontsize=30, horizontalalignment='center')\n",
     "ax.set_axis_off()"
    ]
   },

postBuild

@@ -4,6 +4,3 @@
 python -c "import matplotlib as mpl; mpl.use('Agg'); import pylab as plt; fig, ax = plt.subplots(); fig.savefig('test.png')"
 
 test -e test.png && rm test.png
-
-# install JupyterLab extension
-jupyter labextension install @jupyterlab/latex