remove support for scrapy < 1.1

.travis.yml

@@ -23,8 +23,6 @@ matrix:
           env: TOXENV=py37
         - python: 3.8
           env: TOXENV=py38
-        - python: 2.7
-          env: TOXENV=py27-scrapy10
 
 before_install:
     - docker pull scrapinghub/splash

scrapy_splash/utils.py

@@ -5,17 +5,12 @@
 import six
 
 from scrapy.http import Headers
-try:
-    import scrapy
-    if scrapy.version_info >= (2, ):
-        from scrapy.utils.python import to_unicode
-    else:
-        from scrapy.utils.python import to_native_str as to_unicode
-    from scrapy.utils.python import to_bytes
-except ImportError:
-    # scrapy < 1.1
-    from scrapy.utils.python import unicode_to_str as to_bytes
-    from scrapy.utils.python import str_to_unicode as to_unicode
+import scrapy
+if scrapy.version_info >= (2, ):
+    from scrapy.utils.python import to_unicode
+else:
+    from scrapy.utils.python import to_native_str as to_unicode
+from scrapy.utils.python import to_bytes
 
 
 def dict_hash(obj, start=''):

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py27,py34,py35,py36,py27-scrapy10
+envlist = py27,py34,py35,py36,py37,py38
 
 [testenv]
 passenv = SPLASH_URL
@@ -30,8 +30,10 @@ deps = {[testenv:py34]deps}
 basepython = python3.6
 deps = {[testenv:py34]deps}
 
-[testenv:py27-scrapy10]
-deps =
-    -rrequirements-test.txt
-    scrapy < 1.1
-    service_identity
+[testenv:py37]
+basepython = python3.7
+deps = {[testenv:py34]deps}
+
+[testenv:py38]
+basepython = python3.8
+deps = {[testenv:py34]deps}