From 7e28d1803b652d9230e6e75d3d6e934c8b27e5ac Mon Sep 17 00:00:00 2001
From: degas <smallsmallwolf@gmail.com>
Date: Thu, 13 Aug 2020 14:10:22 +0800
Subject: [PATCH] update information about installation

---
 README.md        | 4 ++++
 requirements.txt | 6 +++---
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index f905555..106c9dd 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,10 @@ Check the [blog post](https://guillaumegenthial.github.io/image-to-latex.html).
 
 ## Install
 
+**Python2 required.**
+
+Install python-dev for compiling multiprocessing (because this is a Python2 project), if Ubuntu just run `apt install python-dev`.
+
 Install pdflatex (latex to pdf) and ghostsript + [magick](https://www.imagemagick.org/script/install-source.php
 ) (pdf to png) on Linux
 
diff --git a/requirements.txt b/requirements.txt
index d14d654..54f25c4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,10 +1,10 @@
-tensorflow
+tensorflow==1.15
 numpy
 scipy
-nltk
+nltk==3.2.5
 pillow
 distance
 logging
 multiprocessing
 six
-click
\ No newline at end of file
+click