fix/pin

.travis.yml

@@ -55,6 +55,7 @@ install:
   - which python
   - python setup.py sdist --quiet
   - pip install dist/*.tar.gz
+  - conda list
 
 script:
   # boto has issues with python3 on travisCI

dask_ec2/salt.py

@@ -162,6 +162,20 @@ def __install_python_pip():
         raise DaskEc2Exception("%s\nCouldn't install python-pip. Error is above (maybe try again)" %
                                e.last_exception)
 
+    @retry(retries=3, wait=0)
+    def __upgrade_pip():
+        cmd = "pip install --upgrade pip packaging appdirs six"
+        ret = master.exec_command(cmd, sudo=True)
+        if ret["exit_code"] != 0:
+            raise Exception(ret["stderr"])
+
+    try:
+        __upgrade_pip()
+    except RetriesExceededException as e:
+        raise DaskEc2Exception(
+            "%s\nCouldn't upgrade pip. Error is above (maybe try again)" %
+            e.last_exception)
+
     @retry(retries=3, wait=0)
     def __install_salt_rest_api():
         cmd = "pip install cherrypy"
@@ -177,10 +191,10 @@ def __install_salt_rest_api():
 
     @retry(retries=3, wait=0)
     def __install_pyopensll():
-        cmd = "pip install PyOpenSSL"
+        cmd = "pip install PyOpenSSL==16.2.0"
         ret = master.exec_command(cmd, sudo=True)
         if ret["exit_code"] != 0:
-            raise Exception(ret["stderr"].decode('utf-8'))
+            raise Exception(ret["stderr"])
 
     try:
         __install_pyopensll()

environment.yml

@@ -5,11 +5,11 @@ dependencies:
   - yaml
   - pyyaml
   - click
-  - boto3
+  - boto3 ==1.4.3
   - pytest
   - coverage
   - pytest-cov
   - pylint
   - pip:
-    - moto
+    - moto==0.4.30
     - twine

requirements.txt

@@ -1,7 +1,7 @@
 six
 click
 paramiko
-boto3
+boto3==1.4.3
 pyyaml
 
 # Test