From 4cc4ca918816c5c2358ac311cb7506ab4ab66b35 Mon Sep 17 00:00:00 2001
From: Roman Mogylatov <rmogilatov@gmail.com>
Date: Tue, 12 Oct 2021 12:16:49 -0400
Subject: [PATCH] Drop Python 3.4 support (#518)

* Update gitignore

* Drop Python 3.4 support

* Update change log

* Fix typo in changelog
---
 .github/workflows/tests-and-linters.yml       |   2 +-
 .gitignore                                    |   3 +-
 docs/main/changelog.rst                       |   2 +
 setup.py                                      |   1 -
 src/dependency_injector/providers.c           | 316 +++++++++---------
 src/dependency_injector/providers.pyx         |  15 +-
 .../providers/test_configuration_py2_py3.py   |  21 --
 tox.ini                                       |  10 +-
 8 files changed, 167 insertions(+), 203 deletions(-)

diff --git a/.github/workflows/tests-and-linters.yml b/.github/workflows/tests-and-linters.yml
index 6d97492d..635b968a 100644
--- a/.github/workflows/tests-and-linters.yml
+++ b/.github/workflows/tests-and-linters.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-18.04
     strategy:
       matrix:
-        python-version: [2.7, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, pypy2, pypy3]
+        python-version: [2.7, 3.5, 3.6, 3.7, 3.8, 3.9, pypy2, pypy3]
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
diff --git a/.gitignore b/.gitignore
index e2195edf..61ff0da5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,6 +36,7 @@ reports/
 .cache
 nosetests.xml
 coverage.xml
+.hypothesis/
 
 # Translations
 *.mo
@@ -54,7 +55,7 @@ target/
 .idea/
 
 # Virtualenv
-venv/
+venv*/
 
 # SQLite
 *.db
diff --git a/docs/main/changelog.rst b/docs/main/changelog.rst
index 0e2ed9c9..abb4b520 100644
--- a/docs/main/changelog.rst
+++ b/docs/main/changelog.rst
@@ -13,6 +13,8 @@ Develop
   ``container.wire(modules=["yourapp.module1"])``.
 - Add container wiring configuration ``wiring_config = containers.WiringConfiguration()``.
 - Add support of ``with`` statement for ``container.override_providers()`` method.
+- Drop support of Python 3.4. There are no immediate breaking changes, but Dependency Injector
+  will no longer be tested on Python 3.4 and any bugs will not be fixed.
 - Update documentation and fix typos.
 
 4.36.2
diff --git a/setup.py b/setup.py
index 0f86fff1..6cdedd2b 100644
--- a/setup.py
+++ b/setup.py
@@ -96,7 +96,6 @@ setup(name="dependency-injector",
           "Programming Language :: Python :: 2",
           "Programming Language :: Python :: 2.7",
           "Programming Language :: Python :: 3",
-          "Programming Language :: Python :: 3.4",
           "Programming Language :: Python :: 3.5",
           "Programming Language :: Python :: 3.6",
           "Programming Language :: Python :: 3.7",
diff --git a/src/dependency_injector/providers.c b/src/dependency_injector/providers.c
index 72e37299..bc4ff2e7 100644
--- a/src/dependency_injector/providers.c
+++ b/src/dependency_injector/providers.c
@@ -94529,13 +94529,13 @@ static PyObject *__pyx_gb_19dependency_injector_9providers_30generator20(__pyx_C
  * 
  * 
  * def isawaitable(obj):             # <<<<<<<<<<<<<<
- *     """Check if object is a coroutine function.
- * 
+ *     """Check if object is a coroutine function."""
+ *     try:
  */
 
 /* Python wrapper */
 static PyObject *__pyx_pw_19dependency_injector_9providers_32isawaitable(PyObject *__pyx_self, PyObject *__pyx_v_obj); /*proto*/
-static char __pyx_doc_19dependency_injector_9providers_31isawaitable[] = "Check if object is a coroutine function.\n\n    Return False for any object in Python 3.4 or below.\n    ";
+static char __pyx_doc_19dependency_injector_9providers_31isawaitable[] = "Check if object is a coroutine function.";
 static PyMethodDef __pyx_mdef_19dependency_injector_9providers_32isawaitable = {"isawaitable", (PyCFunction)__pyx_pw_19dependency_injector_9providers_32isawaitable, METH_O, __pyx_doc_19dependency_injector_9providers_31isawaitable};
 static PyObject *__pyx_pw_19dependency_injector_9providers_32isawaitable(PyObject *__pyx_self, PyObject *__pyx_v_obj) {
   PyObject *__pyx_r = 0;
@@ -94563,9 +94563,9 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_31isawaitable(CYTHON_
   int __pyx_clineno = 0;
   __Pyx_RefNannySetupContext("isawaitable", 0);
 
-  /* "dependency_injector/providers.pyx":4750
- *     Return False for any object in Python 3.4 or below.
- *     """
+  /* "dependency_injector/providers.pyx":4747
+ * def isawaitable(obj):
+ *     """Check if object is a coroutine function."""
  *     try:             # <<<<<<<<<<<<<<
  *         return inspect.isawaitable(obj)
  *     except AttributeError:
@@ -94579,17 +94579,17 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_31isawaitable(CYTHON_
     __Pyx_XGOTREF(__pyx_t_3);
     /*try:*/ {
 
-      /* "dependency_injector/providers.pyx":4751
- *     """
+      /* "dependency_injector/providers.pyx":4748
+ *     """Check if object is a coroutine function."""
  *     try:
  *         return inspect.isawaitable(obj)             # <<<<<<<<<<<<<<
  *     except AttributeError:
  *         return False
  */
       __Pyx_XDECREF(__pyx_r);
-      __Pyx_GetModuleGlobalName(__pyx_t_5, __pyx_n_s_inspect); if (unlikely(!__pyx_t_5)) __PYX_ERR(1, 4751, __pyx_L3_error)
+      __Pyx_GetModuleGlobalName(__pyx_t_5, __pyx_n_s_inspect); if (unlikely(!__pyx_t_5)) __PYX_ERR(1, 4748, __pyx_L3_error)
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-      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_isawaitable); if (unlikely(!__pyx_t_6)) __PYX_ERR(1, 4751, __pyx_L3_error)
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_isawaitable); if (unlikely(!__pyx_t_6)) __PYX_ERR(1, 4748, __pyx_L3_error)
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@@ -94604,16 +94604,16 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_31isawaitable(CYTHON_
       }
       __pyx_t_4 = (__pyx_t_5) ? __Pyx_PyObject_Call2Args(__pyx_t_6, __pyx_t_5, __pyx_v_obj) : __Pyx_PyObject_CallOneArg(__pyx_t_6, __pyx_v_obj);
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-      if (unlikely(!__pyx_t_4)) __PYX_ERR(1, 4751, __pyx_L3_error)
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       goto __pyx_L7_try_return;
 
-      /* "dependency_injector/providers.pyx":4750
- *     Return False for any object in Python 3.4 or below.
- *     """
+      /* "dependency_injector/providers.pyx":4747
+ * def isawaitable(obj):
+ *     """Check if object is a coroutine function."""
  *     try:             # <<<<<<<<<<<<<<
  *         return inspect.isawaitable(obj)
  *     except AttributeError:
@@ -94624,7 +94624,7 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_31isawaitable(CYTHON_
     __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
     __Pyx_XDECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "dependency_injector/providers.pyx":4752
+    /* "dependency_injector/providers.pyx":4749
  *     try:
  *         return inspect.isawaitable(obj)
  *     except AttributeError:             # <<<<<<<<<<<<<<
@@ -94634,12 +94634,12 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_31isawaitable(CYTHON_
     __pyx_t_7 = __Pyx_PyErr_ExceptionMatches(__pyx_builtin_AttributeError);
     if (__pyx_t_7) {
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-      if (__Pyx_GetException(&__pyx_t_4, &__pyx_t_6, &__pyx_t_5) < 0) __PYX_ERR(1, 4752, __pyx_L5_except_error)
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-      /* "dependency_injector/providers.pyx":4753
+      /* "dependency_injector/providers.pyx":4750
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  *     except AttributeError:
  *         return False             # <<<<<<<<<<<<<<
@@ -94657,9 +94657,9 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_31isawaitable(CYTHON_
     goto __pyx_L5_except_error;
     __pyx_L5_except_error:;
 
-    /* "dependency_injector/providers.pyx":4750
- *     Return False for any object in Python 3.4 or below.
- *     """
+    /* "dependency_injector/providers.pyx":4747
+ * def isawaitable(obj):
+ *     """Check if object is a coroutine function."""
  *     try:             # <<<<<<<<<<<<<<
  *         return inspect.isawaitable(obj)
  *     except AttributeError:
@@ -94687,8 +94687,8 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_31isawaitable(CYTHON_
  * 
  * 
  * def isawaitable(obj):             # <<<<<<<<<<<<<<
- *     """Check if object is a coroutine function.
- * 
+ *     """Check if object is a coroutine function."""
+ *     try:
  */
 
   /* function exit code */
@@ -94704,17 +94704,17 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_31isawaitable(CYTHON_
   return __pyx_r;
 }
 
-/* "dependency_injector/providers.pyx":4756
+/* "dependency_injector/providers.pyx":4753
  * 
  * 
  * def iscoroutinefunction(obj):             # <<<<<<<<<<<<<<
- *     """Check if object is a coroutine function.
- * 
+ *     """Check if object is a coroutine function."""
+ *     try:
  */
 
 /* Python wrapper */
 static PyObject *__pyx_pw_19dependency_injector_9providers_34iscoroutinefunction(PyObject *__pyx_self, PyObject *__pyx_v_obj); /*proto*/
-static char __pyx_doc_19dependency_injector_9providers_33iscoroutinefunction[] = "Check if object is a coroutine function.\n\n    Return False for any object in Python 3.4 or below.\n    ";
+static char __pyx_doc_19dependency_injector_9providers_33iscoroutinefunction[] = "Check if object is a coroutine function.";
 static PyMethodDef __pyx_mdef_19dependency_injector_9providers_34iscoroutinefunction = {"iscoroutinefunction", (PyCFunction)__pyx_pw_19dependency_injector_9providers_34iscoroutinefunction, METH_O, __pyx_doc_19dependency_injector_9providers_33iscoroutinefunction};
 static PyObject *__pyx_pw_19dependency_injector_9providers_34iscoroutinefunction(PyObject *__pyx_self, PyObject *__pyx_v_obj) {
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@@ -94742,9 +94742,9 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_33iscoroutinefunction
   int __pyx_clineno = 0;
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-  /* "dependency_injector/providers.pyx":4761
- *     Return False for any object in Python 3.4 or below.
- *     """
+  /* "dependency_injector/providers.pyx":4755
+ * def iscoroutinefunction(obj):
+ *     """Check if object is a coroutine function."""
  *     try:             # <<<<<<<<<<<<<<
  *         return inspect.iscoroutinefunction(obj)
  *     except AttributeError:
@@ -94758,17 +94758,17 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_33iscoroutinefunction
     __Pyx_XGOTREF(__pyx_t_3);
     /*try:*/ {
 
-      /* "dependency_injector/providers.pyx":4762
- *     """
+      /* "dependency_injector/providers.pyx":4756
+ *     """Check if object is a coroutine function."""
  *     try:
  *         return inspect.iscoroutinefunction(obj)             # <<<<<<<<<<<<<<
  *     except AttributeError:
  *         return False
  */
       __Pyx_XDECREF(__pyx_r);
-      __Pyx_GetModuleGlobalName(__pyx_t_5, __pyx_n_s_inspect); if (unlikely(!__pyx_t_5)) __PYX_ERR(1, 4762, __pyx_L3_error)
+      __Pyx_GetModuleGlobalName(__pyx_t_5, __pyx_n_s_inspect); if (unlikely(!__pyx_t_5)) __PYX_ERR(1, 4756, __pyx_L3_error)
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-      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_iscoroutinefunction); if (unlikely(!__pyx_t_6)) __PYX_ERR(1, 4762, __pyx_L3_error)
+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_iscoroutinefunction); if (unlikely(!__pyx_t_6)) __PYX_ERR(1, 4756, __pyx_L3_error)
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@@ -94783,16 +94783,16 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_33iscoroutinefunction
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-      if (unlikely(!__pyx_t_4)) __PYX_ERR(1, 4762, __pyx_L3_error)
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-      /* "dependency_injector/providers.pyx":4761
- *     Return False for any object in Python 3.4 or below.
- *     """
+      /* "dependency_injector/providers.pyx":4755
+ * def iscoroutinefunction(obj):
+ *     """Check if object is a coroutine function."""
  *     try:             # <<<<<<<<<<<<<<
  *         return inspect.iscoroutinefunction(obj)
  *     except AttributeError:
@@ -94803,7 +94803,7 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_33iscoroutinefunction
     __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
     __Pyx_XDECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "dependency_injector/providers.pyx":4763
+    /* "dependency_injector/providers.pyx":4757
  *     try:
  *         return inspect.iscoroutinefunction(obj)
  *     except AttributeError:             # <<<<<<<<<<<<<<
@@ -94813,12 +94813,12 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_33iscoroutinefunction
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     if (__pyx_t_7) {
       __Pyx_AddTraceback("dependency_injector.providers.iscoroutinefunction", __pyx_clineno, __pyx_lineno, __pyx_filename);
-      if (__Pyx_GetException(&__pyx_t_4, &__pyx_t_6, &__pyx_t_5) < 0) __PYX_ERR(1, 4763, __pyx_L5_except_error)
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-      /* "dependency_injector/providers.pyx":4764
+      /* "dependency_injector/providers.pyx":4758
  *         return inspect.iscoroutinefunction(obj)
  *     except AttributeError:
  *         return False             # <<<<<<<<<<<<<<
@@ -94836,9 +94836,9 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_33iscoroutinefunction
     goto __pyx_L5_except_error;
     __pyx_L5_except_error:;
 
-    /* "dependency_injector/providers.pyx":4761
- *     Return False for any object in Python 3.4 or below.
- *     """
+    /* "dependency_injector/providers.pyx":4755
+ * def iscoroutinefunction(obj):
+ *     """Check if object is a coroutine function."""
  *     try:             # <<<<<<<<<<<<<<
  *         return inspect.iscoroutinefunction(obj)
  *     except AttributeError:
@@ -94862,12 +94862,12 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_33iscoroutinefunction
     goto __pyx_L0;
   }
 
-  /* "dependency_injector/providers.pyx":4756
+  /* "dependency_injector/providers.pyx":4753
  * 
  * 
  * def iscoroutinefunction(obj):             # <<<<<<<<<<<<<<
- *     """Check if object is a coroutine function.
- * 
+ *     """Check if object is a coroutine function."""
+ *     try:
  */
 
   /* function exit code */
@@ -94883,17 +94883,17 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_33iscoroutinefunction
   return __pyx_r;
 }
 
-/* "dependency_injector/providers.pyx":4767
+/* "dependency_injector/providers.pyx":4761
  * 
  * 
  * def isasyncgenfunction(obj):             # <<<<<<<<<<<<<<
- *     """Check if object is an asynchronous generator function.
- * 
+ *     """Check if object is an asynchronous generator function."""
+ *     try:
  */
 
 /* Python wrapper */
 static PyObject *__pyx_pw_19dependency_injector_9providers_36isasyncgenfunction(PyObject *__pyx_self, PyObject *__pyx_v_obj); /*proto*/
-static char __pyx_doc_19dependency_injector_9providers_35isasyncgenfunction[] = "Check if object is an asynchronous generator function.\n\n    Return False for any object in Python 3.4 or below.\n    ";
+static char __pyx_doc_19dependency_injector_9providers_35isasyncgenfunction[] = "Check if object is an asynchronous generator function.";
 static PyMethodDef __pyx_mdef_19dependency_injector_9providers_36isasyncgenfunction = {"isasyncgenfunction", (PyCFunction)__pyx_pw_19dependency_injector_9providers_36isasyncgenfunction, METH_O, __pyx_doc_19dependency_injector_9providers_35isasyncgenfunction};
 static PyObject *__pyx_pw_19dependency_injector_9providers_36isasyncgenfunction(PyObject *__pyx_self, PyObject *__pyx_v_obj) {
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@@ -94921,9 +94921,9 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_35isasyncgenfunction(
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   __Pyx_RefNannySetupContext("isasyncgenfunction", 0);
 
-  /* "dependency_injector/providers.pyx":4772
- *     Return False for any object in Python 3.4 or below.
- *     """
+  /* "dependency_injector/providers.pyx":4763
+ * def isasyncgenfunction(obj):
+ *     """Check if object is an asynchronous generator function."""
  *     try:             # <<<<<<<<<<<<<<
  *         return inspect.isasyncgenfunction(obj)
  *     except AttributeError:
@@ -94937,17 +94937,17 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_35isasyncgenfunction(
     __Pyx_XGOTREF(__pyx_t_3);
     /*try:*/ {
 
-      /* "dependency_injector/providers.pyx":4773
- *     """
+      /* "dependency_injector/providers.pyx":4764
+ *     """Check if object is an asynchronous generator function."""
  *     try:
  *         return inspect.isasyncgenfunction(obj)             # <<<<<<<<<<<<<<
  *     except AttributeError:
  *         return False
  */
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+      __Pyx_GetModuleGlobalName(__pyx_t_5, __pyx_n_s_inspect); if (unlikely(!__pyx_t_5)) __PYX_ERR(1, 4764, __pyx_L3_error)
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+      __pyx_t_6 = __Pyx_PyObject_GetAttrStr(__pyx_t_5, __pyx_n_s_isasyncgenfunction); if (unlikely(!__pyx_t_6)) __PYX_ERR(1, 4764, __pyx_L3_error)
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@@ -94962,16 +94962,16 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_35isasyncgenfunction(
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-      /* "dependency_injector/providers.pyx":4772
- *     Return False for any object in Python 3.4 or below.
- *     """
+      /* "dependency_injector/providers.pyx":4763
+ * def isasyncgenfunction(obj):
+ *     """Check if object is an asynchronous generator function."""
  *     try:             # <<<<<<<<<<<<<<
  *         return inspect.isasyncgenfunction(obj)
  *     except AttributeError:
@@ -94982,7 +94982,7 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_35isasyncgenfunction(
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     __Pyx_XDECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-    /* "dependency_injector/providers.pyx":4774
+    /* "dependency_injector/providers.pyx":4765
  *     try:
  *         return inspect.isasyncgenfunction(obj)
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-      if (__Pyx_GetException(&__pyx_t_4, &__pyx_t_6, &__pyx_t_5) < 0) __PYX_ERR(1, 4774, __pyx_L5_except_error)
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-      /* "dependency_injector/providers.pyx":4775
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     __pyx_L5_except_error:;
 
-    /* "dependency_injector/providers.pyx":4772
- *     Return False for any object in Python 3.4 or below.
- *     """
+    /* "dependency_injector/providers.pyx":4763
+ * def isasyncgenfunction(obj):
+ *     """Check if object is an asynchronous generator function."""
  *     try:             # <<<<<<<<<<<<<<
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@@ -95041,12 +95041,12 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_35isasyncgenfunction(
     goto __pyx_L0;
   }
 
-  /* "dependency_injector/providers.pyx":4767
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  * 
  * 
  * def isasyncgenfunction(obj):             # <<<<<<<<<<<<<<
- *     """Check if object is an asynchronous generator function.
- * 
+ *     """Check if object is an asynchronous generator function."""
+ *     try:
  */
 
   /* function exit code */
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 }
 
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-  /* "dependency_injector/providers.pyx":4782
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-    /* "dependency_injector/providers.pyx":4781
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+    __pyx_t_5 = __pyx_f_19dependency_injector_9providers_deepcopy(__pyx_t_3, 0, &__pyx_t_6); if (unlikely(!__pyx_t_5)) __PYX_ERR(1, 4772, __pyx_L1_error)
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-    /* "dependency_injector/providers.pyx":4783
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-    __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_v_from_, __pyx_n_s_parent); if (unlikely(!__pyx_t_5)) __PYX_ERR(1, 4783, __pyx_L1_error)
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@@ -95143,14 +95143,14 @@ static PyObject *__pyx_f_19dependency_injector_9providers__copy_parent(PyObject
   __pyx_v_copied_parent = __pyx_t_1;
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-  /* "dependency_injector/providers.pyx":4785
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+  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_v_to, __pyx_n_s_assign_parent); if (unlikely(!__pyx_t_5)) __PYX_ERR(1, 4776, __pyx_L1_error)
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@@ -95164,12 +95164,12 @@ static PyObject *__pyx_f_19dependency_injector_9providers__copy_parent(PyObject
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-  __Pyx_RaiseArgtupleInvalid("_copy_parent", 1, 3, 3, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(1, 4778, __pyx_L3_error)
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@@ -95283,7 +95283,7 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_37_copy_parent(CYTHON
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+  __pyx_t_1 = __pyx_f_19dependency_injector_9providers__copy_parent(__pyx_v_from_, __pyx_v_to, __pyx_v_memo, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 4769, __pyx_L1_error)
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@@ -95300,7 +95300,7 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_37_copy_parent(CYTHON
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-  /* "dependency_injector/providers.pyx":4789
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-  /* "dependency_injector/providers.pyx":4790
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+  __pyx_t_1 = __pyx_f_19dependency_injector_9providers__memorized_duplicate(__pyx_v_instance, __pyx_v_memo, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(1, 4779, __pyx_L1_error)
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-    /* "dependency_injector/providers.pyx":4795
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diff --git a/src/dependency_injector/providers.pyx b/src/dependency_injector/providers.pyx
index 567b2bab..9dbab382 100644
--- a/src/dependency_injector/providers.pyx
+++ b/src/dependency_injector/providers.pyx
@@ -4743,10 +4743,7 @@ def traverse(*providers, types=None):
 
 
 def isawaitable(obj):
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@@ -4754,10 +4751,7 @@ def isawaitable(obj):
 
 
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-    """Check if object is a coroutine function.
-
-    Return False for any object in Python 3.4 or below.
-    """
+    """Check if object is a coroutine function."""
     try:
         return inspect.iscoroutinefunction(obj)
     except AttributeError:
@@ -4765,10 +4759,7 @@ def iscoroutinefunction(obj):
 
 
 def isasyncgenfunction(obj):
-    """Check if object is an asynchronous generator function.
-
-    Return False for any object in Python 3.4 or below.
-    """
+    """Check if object is an asynchronous generator function."""
     try:
         return inspect.isasyncgenfunction(obj)
     except AttributeError:
diff --git a/tests/unit/providers/test_configuration_py2_py3.py b/tests/unit/providers/test_configuration_py2_py3.py
index 2bec4d24..dad317d0 100644
--- a/tests/unit/providers/test_configuration_py2_py3.py
+++ b/tests/unit/providers/test_configuration_py2_py3.py
@@ -795,7 +795,6 @@ class ConfigFromYamlTests(unittest.TestCase):
         os.unlink(self.config_file_1)
         os.unlink(self.config_file_2)
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test(self):
         self.config.from_yaml(self.config_file_1)
 
@@ -805,7 +804,6 @@ class ConfigFromYamlTests(unittest.TestCase):
         self.assertEqual(self.config.section2(), {"value2": 2})
         self.assertEqual(self.config.section2.value2(), 2)
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_merge(self):
         self.config.from_yaml(self.config_file_1)
         self.config.from_yaml(self.config_file_2)
@@ -833,45 +831,37 @@ class ConfigFromYamlTests(unittest.TestCase):
         self.assertEqual(self.config.section3(), {"value3": 3})
         self.assertEqual(self.config.section3.value3(), 3)
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_file_does_not_exist(self):
         self.config.from_yaml("./does_not_exist.yml")
         self.assertEqual(self.config(), {})
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_file_does_not_exist_strict_mode(self):
         self.config = providers.Configuration(strict=True)
         with self.assertRaises(IOError):
             self.config.from_yaml("./does_not_exist.yml")
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_option_file_does_not_exist(self):
         self.config.option.from_yaml("./does_not_exist.yml")
         self.assertIsNone(self.config.option())
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_option_file_does_not_exist_strict_mode(self):
         self.config = providers.Configuration(strict=True)
         with self.assertRaises(IOError):
             self.config.option.from_yaml("./does_not_exist.yml")
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_required_file_does_not_exist(self):
         with self.assertRaises(IOError):
             self.config.from_yaml("./does_not_exist.yml", required=True)
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_required_option_file_does_not_exist(self):
         with self.assertRaises(IOError):
             self.config.option.from_yaml("./does_not_exist.yml", required=True)
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_not_required_file_does_not_exist_strict_mode(self):
         self.config = providers.Configuration(strict=True)
         self.config.from_yaml("./does_not_exist.yml", required=False)
         self.assertEqual(self.config(), {})
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_not_required_option_file_does_not_exist_strict_mode(self):
         self.config = providers.Configuration(strict=True)
         self.config.option.from_yaml("./does_not_exist.yml", required=False)
@@ -943,7 +933,6 @@ class ConfigFromYamlWithEnvInterpolationTests(unittest.TestCase):
         os.environ.pop("CONFIG_TEST_PATH", None)
         os.unlink(self.config_file)
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_env_variable_interpolation(self):
         self.config.from_yaml(self.config_file)
 
@@ -966,7 +955,6 @@ class ConfigFromYamlWithEnvInterpolationTests(unittest.TestCase):
         self.assertEqual(self.config.section1.value1(), "test-value")
         self.assertEqual(self.config.section1.value2(), "test-path/path")
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_missing_envs_not_required(self):
         del os.environ["CONFIG_TEST_ENV"]
         del os.environ["CONFIG_TEST_PATH"]
@@ -992,7 +980,6 @@ class ConfigFromYamlWithEnvInterpolationTests(unittest.TestCase):
         self.assertIsNone(self.config.section1.value1())
         self.assertEqual(self.config.section1.value2(), "/path")
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_missing_envs_required(self):
         with open(self.config_file, "w") as config_file:
             config_file.write(
@@ -1008,7 +995,6 @@ class ConfigFromYamlWithEnvInterpolationTests(unittest.TestCase):
             "Missing required environment variable \"UNDEFINED\"",
         )
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_missing_envs_strict_mode(self):
         with open(self.config_file, "w") as config_file:
             config_file.write(
@@ -1025,7 +1011,6 @@ class ConfigFromYamlWithEnvInterpolationTests(unittest.TestCase):
             "Missing required environment variable \"UNDEFINED\"",
         )
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_option_missing_envs_not_required(self):
         del os.environ["CONFIG_TEST_ENV"]
         del os.environ["CONFIG_TEST_PATH"]
@@ -1051,7 +1036,6 @@ class ConfigFromYamlWithEnvInterpolationTests(unittest.TestCase):
         self.assertIsNone(self.config.option.section1.value1())
         self.assertEqual(self.config.option.section1.value2(), "/path")
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_option_missing_envs_required(self):
         with open(self.config_file, "w") as config_file:
             config_file.write(
@@ -1067,7 +1051,6 @@ class ConfigFromYamlWithEnvInterpolationTests(unittest.TestCase):
             "Missing required environment variable \"UNDEFINED\"",
         )
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_option_missing_envs_strict_mode(self):
         with open(self.config_file, "w") as config_file:
             config_file.write(
@@ -1084,7 +1067,6 @@ class ConfigFromYamlWithEnvInterpolationTests(unittest.TestCase):
             "Missing required environment variable \"UNDEFINED\"",
         )
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_default_values(self):
         os.environ["DEFINED"] = "defined"
         self.addCleanup(os.environ.pop, "DEFINED")
@@ -1108,7 +1090,6 @@ class ConfigFromYamlWithEnvInterpolationTests(unittest.TestCase):
             },
         )
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_option_env_variable_interpolation(self):
         self.config.option.from_yaml(self.config_file)
 
@@ -1131,7 +1112,6 @@ class ConfigFromYamlWithEnvInterpolationTests(unittest.TestCase):
         self.assertEqual(self.config.option.section1.value1(), "test-value")
         self.assertEqual(self.config.option.section1.value2(), "test-path/path")
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_env_variable_interpolation_custom_loader(self):
         self.config.from_yaml(self.config_file, loader=yaml.UnsafeLoader)
 
@@ -1145,7 +1125,6 @@ class ConfigFromYamlWithEnvInterpolationTests(unittest.TestCase):
         self.assertEqual(self.config.section1.value1(), "test-value")
         self.assertEqual(self.config.section1.value2(), "test-path/path")
 
-    @unittest.skipIf(sys.version_info[:2] == (3, 4), "PyYAML does not support Python 3.4")
     def test_option_env_variable_interpolation_custom_loader(self):
         self.config.option.from_yaml(self.config_file, loader=yaml.UnsafeLoader)
 
diff --git a/tox.ini b/tox.ini
index fdf2571e..e3e44ed3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 envlist=
-    coveralls, pylint, flake8, pydocstyle, 2.7, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, pypy2, pypy3
+    coveralls, pylint, flake8, pydocstyle, 2.7, 3.5, 3.6, 3.7, 3.8, 3.9, pypy2, pypy3
 
 [testenv]
 deps=
@@ -43,14 +43,6 @@ extras=
 commands=
     python -m unittest discover -s tests/unit -p test_*_py2_py3.py
 
-[testenv:3.4]
-deps=
-    contextvars
-extras=
-    flask
-commands=
-    python -m unittest discover -s tests/unit -p test_*_py3.py
-
 [testenv:3.5]
 deps=
     contextvars