From cc3116be82d6c3c05d160c7c8694b7fbd15774b4 Mon Sep 17 00:00:00 2001
From: kan-bayashi <hayashi.tomoki@g.sp.m.is.nagoya-u.ac.jp>
Date: Tue, 1 Dec 2020 20:17:21 +0900
Subject: [PATCH] temporary fixed pip version to avoid PEP440 error

---
 ci/install.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ci/install.sh b/ci/install.sh
index ff807324448..730ba92e871 100755
--- a/ci/install.sh
+++ b/ci/install.sh
@@ -17,6 +17,10 @@ ${CXX:-g++} -v
     else
         ./setup_python.sh "$(command -v python3)" venv
     fi
+    # Temporary fix pip version to avoid PEP440
+    #   See: https://github.com/pypa/pip/issues/8745
+    . ./activate_python.sh
+    pip3 install pip==20.2.4
     make TH_VERSION="${TH_VERSION}"
 
     make nkf.done moses.done mwerSegmenter.done pesq pyopenjtalk.done py3mmseg.done