version bump and deprecation banners

CHANGELOG.md

@@ -1,8 +1,6 @@
-# CHANGELOG
+## 1.0.4 – 2019-04-12
 
-## 1.1beta – [no release date yet]
-
-(Among many bugfixes...)
+### Many bugfixes -- special thanks to Guadalupe Cañas-Herrera and Vivian Miranda!
 
 ### I/O
 

LICENCE.txt

@@ -1,4 +1,4 @@
-Copyright 2017-2018 Jesus Torrado and Antony Lewis
+Copyright 2017-2019 Jesus Torrado and Antony Lewis
 
 You are licensed to use this software free of charge within the terms of the LGPL (see below), with two additional conditions (from CAMB.info):
 

cobaya/__init__.py

@@ -1,4 +1,5 @@
 __author__ = "Jesus Torrado and Antony Lewis"
-__version__ = "1.0.3"
-__year__ = "2018"
+__version__ = "1.0.4"
+__obsolete__ = True
+__year__ = "2019"
 __url__ = "https://cobaya.readthedocs.io"

cobaya/citation.py

@@ -16,7 +16,7 @@
 from collections import OrderedDict as odict
 
 # Local
-from cobaya.tools import get_folder, make_header
+from cobaya.tools import get_folder, make_header, warn_deprecation
 from cobaya.input import get_modules
 
 
@@ -53,6 +53,7 @@ def prettyprint_citation(blocks_text):
 def citation_script():
     from cobaya.mpi import am_single_or_primary_process
     if am_single_or_primary_process():
+        warn_deprecation()
         # Configure the logger ASAP
         from cobaya.log import logger_setup
         logger_setup()

cobaya/cosmo_input/gui.py

@@ -200,6 +200,7 @@ def copy_clipb(self):
 
 
 def gui_script():
+    warn_deprecation()
     try:
         app = QApplication(sys.argv)
     except NameError:

cobaya/install.py

@@ -21,7 +21,7 @@
 
 # Local
 from cobaya.log import logger_setup, HandledException
-from cobaya.tools import get_folder, make_header
+from cobaya.tools import get_folder, make_header, warn_deprecation
 from cobaya.input import get_modules
 from cobaya.conventions import _package, _code, _data, _likelihood, _external
 from cobaya.conventions import _modules_path_arg, _path_install
@@ -195,6 +195,7 @@ def pip_install(packages):
 def install_script():
     from cobaya.mpi import am_single_or_primary_process
     if not am_single_or_primary_process():
+        warn_deprecation()
         # Configure the logger ASAP
         logger_setup()
         log = logging.getLogger(__name__.split(".")[-1])

cobaya/run.py

@@ -25,6 +25,7 @@
 from cobaya.yaml import yaml_dump
 from cobaya.input import get_full_info
 from cobaya.mpi import import_MPI, am_single_or_primary_process
+from cobaya.tools import warn_deprecation
 
 
 def run(info):
@@ -71,6 +72,7 @@ def run(info):
 
 # Command-line script
 def run_script():
+    warn_deprecation()
     import os
     import argparse
     parser = argparse.ArgumentParser(description="Cobaya's run script.")

cobaya/tools.py

@@ -20,9 +20,9 @@
 from collections import Mapping, OrderedDict as odict
 from ast import parse
 if six.PY3:
-    from inspect import getfullargspec as getargspec
+    from inspect import cleandoc, getfullargspec as getargspec
 else:
-    from inspect import getargspec
+    from inspect import cleandoc, getargspec
 
 # Local
 from cobaya.conventions import _package, subfolders, _p_dist, _likelihood, _p_value
@@ -269,3 +269,41 @@ def KL_norm(m1=None, S1=np.array([]), m2=None, S2=np.array([])):
     KL = 0.5 * (np.trace(S2inv.dot(S1)) + (m1 - m2).dot(S2inv).dot(m1 - m2) -
                 dim + np.log(np.linalg.det(S2) / np.linalg.det(S1)))
     return KL
+
+
+def create_banner(msg):
+    """
+    Puts message into an attention-grabbing banner.
+    """
+    msg_clean = cleandoc(msg)
+    longest_line_len = max([len(line) for line in msg_clean.split("\n")])
+    return ("*"*longest_line_len + "\n" + msg_clean + "\n" + "*"*longest_line_len)
+
+
+def warn_deprecation_python2():
+    msg = """
+    *WARNING*: Python 2 support will eventually be dropped
+    (it is already unsupported by many scientific Python modules).
+
+    Please use Python 3!
+
+    In some systems, the Python 3 command may be python3 instead of python.
+    If that is the case, use pip3 instead of pip to install Cobaya.
+    """
+    if not six.PY3:
+        print(create_banner(msg))
+
+
+def warn_deprecation_version():
+    msg = """
+    *WARNING*: You are using an obsolete version of Cobaya, which is no loger maintained.
+
+    Please, update asap to the last version (e.g. with ``pip install cobaya --upgrade``).
+    """
+    if __obsolete__:
+        print(create_banner(msg))
+
+
+def warn_deprecation():
+    warn_deprecation_python2()
+    warn_deprecation_version()