++ on python-bleach being a needed dependency

python-bleach should be a dependency (don't know if for the makedepends)

python-setuptools should be in the makedepends list.

Any chance of updating to 1.5.12?

In the meantime:

diff --git a/PKGBUILD b/PKGBUILD
index d31ce24..5378607 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,7 +1,7 @@
 # Maintainer: asermax <asermax@gmail.com>
 pkgname=kaggle-api
 _name=kaggle
-pkgver=1.5.3
+pkgver=1.5.6
 pkgrel=1
 pkgdesc='Kaggle API CLI'
 arch=('any')
@@ -20,8 +20,19 @@ depends=(
 makedepends=(
   'python-setuptools'
 )
-source=(${pkgname}-${pkgver}.tar.gz::"https://files.pythonhosted.org/packages/source/${_name::1}/${_name}/${_name}-${pkgver}.tar.gz")
-sha512sums=('8f467cb6ef4fb11bf10cfbbae5acde5be7cea7b5ec34f3dcdd4c88dc206aa3e8119a762c04c9bd470224eaf952293547eaa3745fd873a0fa14601699c5558ac0')
+source=(
+  ${pkgname}-${pkgver}.tar.gz::"https://files.pythonhosted.org/packages/source/${_name::1}/${_name}/${_name}-${pkgver}.tar.gz"
+  263.patch::'https://github.com/Kaggle/kaggle-api/commit/8f08ba91095fac8e1e2b8783ce9dbae47c0d7ef7.patch'
+)
+sha512sums=(
+  'bdd05342357f835a5186994e95017d4bdf0d7fef2b70c6a8b142c4d19ce1fd797b85058f958ade033795f3fca0a51482aeb9e09d55d5ed58e3256e0eedc8fbae'
+  '79b5617f9f46506eb9f3eea3f87475525dcd210a5837d04c8fc5252bb58cb6601fabf40b52b90132c75ad5172279f90438ae1bc4bd52311e3dbb0df1fd6f9a30'
+)
+
+prepare() {
+  cd "${_name}-${pkgver}"
+  patch --forward --strip=1 --input="${srcdir}/263.patch"
+}

 build() {
   cd "${_name}-${pkgver}"

looks like 1.5.6 version is here