fixed 3.5 backwards compatibility (order of dict included)

pdf_generator/tex_generation/template_engine.py

 import logging
 from base64 import decodebytes
+from collections import OrderedDict
 from pathlib import Path
 from time import localtime, strftime
 
@@ -42,26 +43,26 @@ def nice_number_filter(number):
 
 
 def filter_latex_special_chars(data):
-    latex_character_escapes = {
-        '\\': '',
-        '$': '\\$',
-        '(': '$($',
-        ')': '$)$',
-        '[': '$[$',
-        ']': '$]$',
-        '#': '\\#',
-        '%': '\\%',
-        '&': '\\&',
-        '_': '\\_',
-        '{': '\\{',
-        '}': '\\}',
-        '^': '\\textasciicircum{}',
-        '~': '\\textasciitilde{}',
-        '>': '\\textgreater{}',
-        '<': '\\textless{}',
-        '\n': '\\newline ',
-        '\'': ''
-    }
+    latex_character_escapes = OrderedDict()
+    latex_character_escapes['\\'] = ''
+    latex_character_escapes['\''] = ''
+    latex_character_escapes['$'] = '\\$'
+    latex_character_escapes['('] = '$($'
+    latex_character_escapes[')'] = '$)$'
+    latex_character_escapes['['] = '$[$',
+    latex_character_escapes[']'] = '$]$',
+    latex_character_escapes['#'] = '\\#'
+    latex_character_escapes['%'] = '\\%'
+    latex_character_escapes['&'] = '\\&'
+    latex_character_escapes['_'] = '\\_'
+    latex_character_escapes['{'] = '\\{'
+    latex_character_escapes['}'] = '\\}'
+    latex_character_escapes['^'] = '\\textasciicircum{}'
+    latex_character_escapes['~'] = '\\textasciitilde{}'
+    latex_character_escapes['>'] = '\\textgreater{}'
+    latex_character_escapes['<'] = '\\textless{}'
+    latex_character_escapes['\n'] = '\\newline '
+
     for character, replacement in latex_character_escapes.items():
         if character in data:
             data = data.replace(character, replacement)

test/unit/test_generator.py

@@ -31,13 +31,13 @@ def test_execute_latex(monkeypatch, tmpdir):
     monkeypatch.setattr('pdf_generator.generator.execute_shell_command_get_return_code', exec_mock)
 
     execute_latex(str(tmpdir))
-    assert Path(tmpdir, 'test').exists()
-    assert Path(tmpdir, 'test').read_text() == 'works'
+    assert Path(str(tmpdir), 'test').exists()
+    assert Path(str(tmpdir), 'test').read_text() == 'works'
 
 
 def test_copy_fact_image(tmpdir):
     copy_fact_image(str(tmpdir))
-    assert Path(tmpdir, 'fact_logo.png').exists()
+    assert Path(str(tmpdir), 'fact_logo.png').exists()
 
 
 def test_create_report_filename():
@@ -60,8 +60,8 @@ def test_create_templates(monkeypatch, tmpdir):
     monkeypatch.setattr('pdf_generator.generator.Engine', MockEngine)
     create_templates(analysis={'test': {'result': 'data'}}, meta_data={}, tmp_dir=str(tmpdir))
 
-    assert Path(tmpdir, 'main.tex').exists()
-    assert Path(tmpdir, 'meta.tex').exists()
-    assert Path(tmpdir, 'test.tex').exists()
+    assert Path(str(tmpdir), 'main.tex').exists()
+    assert Path(str(tmpdir), 'meta.tex').exists()
+    assert Path(str(tmpdir), 'test.tex').exists()
 
-    assert Path(tmpdir, 'test.tex').read_text() == '{"result": "data"}'
+    assert Path(str(tmpdir), 'test.tex').read_text() == '{"result": "data"}'